The McCain/D Districts
In 2008 49 congressional districts voted for McCain for President but sent a Democrat to Congress.  Republicans made big gains in these districts in 2010, winning 37 of them.
Note: Eight of the 49 congressmen retired, resigned or lost in the primary, indicated by an **; Democrats did not win a single one of those seats.

AL-2: Rep. Bobby Bright v. Montgomery City Councilwoman Martha Roby...   2008: Bright 50.23% - Jay Love (R) 49.61%   [287,394]  ...1,790 votes        ...McCain 63%-Obama 37%

**AL-5 (Rep. Parker Griffith switched to the Republican Party in Dec. 2009 and then lost in the primary): Small businessman Steve Raby (D), who served as Sen. Howell Heflin's chief of staff v. attorney and Madison County Commissioner Mo Brooks (R)     ...McCain 61%-Obama 38%

**AR-1 (Marion Berry): former Berry chief of staff Chad Causey (D) v. agri-communications exec. Rick Crawford (R)    ...McCain 59%-Obama 38%

**AR-2 (Vic Snyder): Sen. Majority Leader Joyce Elliott (D) v. former U.S. Attorney Tim Griffin (R)      ...McCain 54%-Obama 44%

AR-4: Rep. Mike Ross v. former Huckabee aide Beth Anne Rankin...    2008: Ross 86.17% - Joshua Drake (G) 13.83%  [235,781]   ....McCain 58%-Obama 39%

AZ-1: Rep. Ann Kirkpatrick v. dentist Paul Gosar...  2008: Kirkpatrick 55.88% - Sydney Hay (R) 39.43%  [278,787]     ...McCain 54%-Obama 44%

AZ-5: Rep. Harry Mitchell v. Maricopa County Treasurer David Schweikert...  2008: Mitchell 53.16% - David Schweikert (R) 43.57%   [280,365]     ...McCain 52%-Obama 47%

AZ-8: Rep. Gabrielle Giffords v. veteran Jesse Kelly...  2008: Giffords 54.72% - Tim Bee (R) 42.82%   [328,266]     ...McCain 52%-Obama 46%

CO-3: Rep. John Salazar v. State Rep. Scott Tipton...  2008: Salazar 61.61% - Wayne Wolf (R) 38.39%  [330,219]   ...McCain 50%-Obama 47%

CO-4: Rep. Betsy Markey v. State Rep. Cory Gardner...  2008: Markey 56.20% - Marilyn Musgrave (R)* 43.80%   [333,378]     ...McCain 50%-Obama 49%

FL-2: Rep. Allen Boyd v. funeral home president Steve Southerland...  2008: Boyd 61.88% - Mark Mulligan 38.08%  [350,367]   ...McCain 54%-Obama 45%

FL-24: Rep. Suzanne Kosmas v. State Rep. Sandy Adams...  2008: Kosmas 57.20% - Tom Feeney (R)* 41.11%   [369,370]     ...McCain 51%-Obama 49%

GA-8: Rep. Jim Marshall v. State Rep. Austin Scott...     2008: Marshall 57.24% - Robert Nowack (R) 42.76%  [274,687]   ...McCain 56%-Obama 43%

ID-01: Rep. Walt Minnick v. State Rep. Raul Labrador...   2008: Minnick 50.61% - Bill Sali (R)* 49.39%   [347,585]  ...4,211 votes     ...McCain 62%-Obama 36%

**IN-8 (Brad Ellsworth): Trent Van Haaften (D) v. cardiothoracic surgeon Larry Bucshon (R)      ...McCain 51%-Obama 47%

IN-09: Rep. Baron Hill v. attorney Todd Young...  2008: Hill 57.77% - Mike Sodrel (R) 38.41%   [313,804]     ...McCain 50%-Obama 48%

KY-06: Rep. Ben Chandler v. attorney Andy Barr...    2008: Chandler 64.66% - Jon Larson 35.34%  [315,142]    ...McCain 55%-Obama 43%

**LA-3 (Charlie Melancon): attorney Ravi Sangisetty (D) v. Jeff Landry (R)    ...McCain 61%-Obama 37%

MD-01: Rep. Frank M. Kratovil, Jr. v. state Sen. Andy Harris...  2008: Kratovil 49.12% - Andy Harris (R) 48.33%   [360,480]  ...2,852 votes     ...McCain 58%-Obama 40%

MN-07: Rep. Collin Peterson v. poultry company executive Lee Byberg...    2008: Peterson 72.20% - Glen Menze 27.67%  [314,680]    ...McCain 50%-Obama 47%

MO-4: Rep. Ike Skelton v. frmr State Rep. Vicky Hartzler...    2008: Skelton 65.91% - Jeff Parnell 34.09%  [303,455]   ...McCain 61%-Obama 38%

MS-01: Rep. Travis Childers v. State Sen. Alan Nunnelee...   2008: Childers 54.47% - Greg Davis (R) 43.88%   [341,389]      ...McCain 62%-Obama 37%

MS-04: Rep. Gene Taylor v. State Rep. Steven Palazzo...     2008: Taylor 74.54% - John McCay III 25.46%  [290,519]   ...McCain 68%-Obama 32%

NC-07: Rep. Mike McIntyre v. veteran/author Ilario Patano...     2008: McIntyre 68.84% - Will Breazeale 31.16%  [312,855]    ...McCain 52%-Obama 47%

NC-11: Rep. Heath Shuler v. businessman Jeff Miller...    2008: Schuler 61.96% - Carl Mumpower 35.83%  [340,716]     ...McCain 52%-Obama 47%

ND-AL: Rep. Earl Pomeroy v. State Rep. Rick Berg...    2008: Pomeroy 61.97% - Duane Sand 34.07%  [335,762]    ...McCain 53%-Obama 45%

NM-02: Rep. Harry Teague v. fmr U.S. Rep. Steve Pearce...  2008: Teague 55.96% - Ed Tinsley (R) 44.04%   [231,552]    ...McCain 50%-Obama 49%

NY-13: Rep. Michael McMahon v. businessman Michael Grimm...  2008: McMahon 60.93% - Robert Straniere (R) 33.31%   [187,446]     ...McCain 51%-Obama 49%

**NY-29 (Eric Massa): veteran Matt Zeller v. former Corning Mayor Tom Reed    ...McCain 51%-Obama 48%

OH-06: Rep. Charlie Wilson v. businessman Bill Johnson...   2008: Wilson 62.28% - Richard Stobbs 32.84%  [283,110]     ...McCain 50%-Obama 48%

OH-16: Rep. John Boccieri v. businessman and frmr Wadsworth Mayor Jim Renacci...   2008: Boccieri 55.36% - Kirk Schuring (R) 44.64%  [305,337]      ...McCain 50%-Obama 48%

OH-18: Rep. Zach Space v. State Sen. Bob Gibbs...   2008: Space 59.87% - Fred Dailey (R) 40.13%  [274,218]    ...McCain 53%-Obama 45%

OK-02: Rep. Dan Boren v. veterinarian Charles Thompson...     2008: Boren 70.47% - Raymond Wickson (R) 29.53%  [246,572]     ...McCain 66%-Obama 34%

PA-03: Rep. Kathy Dahlkemper v. auto dealer Mike Kelly...   2008: Dahlkemper 51.24% - Phil English (R)* 48.76%  [286,603]      ...McCain 49%-Obama 49%

PA-04: Rep. Jason Altmire v. attorney Keith Rothfus...    2008: Altmire 55.86% - Melissa Hart 44.14%  [333,947]     ...McCain 55%-Obama 44%

PA-10: Rep. Chris Carney v. fmr U.S. Attorney Tom Marino...   2008: Carney 56.33% - Chris Hackett (R) 43.67%   [285,518]          ...McCain 54%-Obama 45%

PA-12: Rep. Mark Critz v. businessman Tim Burns  rematch of 05/18/10 special election  2008: Murtha 57.85% - William Russell 42.15%  [268,388]     ...McCain 50%-Obama 49%

PA-17: Rep. Tim Holden v. State Sen. Dave Argall...     2008: Holden 63.68% - Toni Gilhooley 36.32%  [302,608]     ...McCain 51%-Obama 48%

SC-05: Rep. John Spratt v. State Sen. Mike Mulvaney...     2008: Spratt 61.64% - Albert Spencer 36.99%  [306,285]      ...McCain 53%-Obama 46%

SD-AL: Rep. Stephanie Herseth-Sandlin v. State Rep. Kristi Noem...     2008: Herseth-Sandlin 67.56% - Chris Lien 32.44%  [379,007]        ...McCain 53%-Obama 45%

TN-04: Rep. Lincoln Davis v. Dr. Scott DesJarlais...     2008: Davis 58.76% - Monty Lankford 37.81%  [249,805]      ...McCain 64%-Obama 34%

**TN-6 (Bart Gordon): attorney and veteran Brett Carter (D) v. State Sen. Diane Black (R)     ...McCain 62%-Obama 37%

**TN-8 (John Tanner): State Sen. Roy Herron (D) v. farm managing partner Stephen Fincher (R)     ...McCain 56%-Obama 43%

TX-17: Rep. Chet Edwards v. businessman Bill Flores...   2008: Edwards 52.98% - John Curnock (R) 45.50%  [254,022]      ...McCain 67%-Obama 32%

UT-02: Rep. Jim Matheson v. former State Rep. Morgan Philpot...     2008: Matheson 63.35% - Bill Dew 34.47%  [348,325]        ...McCain 57%-Obama 39%

VA-05: Rep. Tom Perriello v. State Sen. Robert Hurt...   2008: Perriello 50.09% - Vergil Goode (R)* 49.86%   [317,076]  ...727 votes     ...McCain 51%-Obama 48%

VA-09: Rep. Rick Boucher v. State House Majority Leader Morgan Griffith...    2008: Boucher 97.07% - Scatter 2.93%  [213,570]        ...McCain 59%-Obama 40%

**WV-1 (Alan Mollohan): State Sen. Mike Oliverio (D) v. civil engineer and former State Rep. David McKinley (R)    ...McCain 57%-Obama 42%

WV-03: Rep. Nick Rahall v. former State Supreme Court Justice Spike Maynard...    2008: Rahall 66.92% - Marty Gearheart 33.08%  [199,527]        ...McCain 56%-Obama 42%
See also interesting page from the National Republican Trust >