[NYer]

The Jewish vote goes Democrat, the Protestant to the Republican. Catholics are the flip-floppers picking Republicans five times and Democrats four since 1972

Actually, 53% of the Protestant vote went to Obama.

Source

[Alex Murphy]

Actually, 53% of the Protestant vote went to Obama.

Wow - just look how your numbers dovetail so neatly into mine! Thank you for contibuting an additional chart and source to my polling statistics - especially one that provide stats for 2000 and 2004 in addition to 2008! And as your own chart shows, only a subset of the "Protestant" vote went to Obama. All Pew Forum entries have been given their own row, and are colored green for emphasis:

xx% McCain, 23% Obama - White Evangelicals age 30-64¹¹
75% McCain, 25% Obama - White^7,10 Born Again^5,10,12 Evangelicals^1,8,10,12
73% McCain, 26% Obama - Evangelical/Born-again Protestant¹⁴
xx% McCain, 32% Obama - White Evangelicals age 18-29¹¹
65% McCain, xx% Obama - Weekly church-attending Protestants⁷
65% McCain, 34% Obama - White Protestants^7,8
65% McCain, 34% Obama - White Protestant/Other Christian¹⁴
62% McCain, 35% Obama - State of Utah³
59% McCain, 40% Obama - Working-class whites¹³
57% McCain, 41% Obama - White men¹³
55% McCain, 43% Obama - Weekly mass-attending Catholics ^6,9
55% McCain, 43% Obama - "White voters" ¹³
55% McCain, 44% Obama - Non-evangelical Protestant¹⁴
54% McCain, 44% Obama - Weekly church-goers^1,4,7,12
54% McCain, 45% Obama - Protestants^6,8
53% McCain, 46% Obama - White women ¹³
52% McCain, 47% Obama - White "regular-mass-attending" Catholics¹²
52% McCain, 47% Obama - White Catholic¹⁴
51% McCain, 47% Obama - White college graduates¹³
xx% McCain, 47% Obama - White independent voters¹³
51% McCain, 49% Obama - White Catholics^1,7,11
46% McCain, 52% Obama - Non-Evangelical Protestants ¹²
46% McCain, 53% Obama - Protestant/Other Christian¹⁴
xx% McCain, 53% Obama - Monthly church-goers ⁴**
44% McCain, 54% Obama - "Young whites"¹³
45% McCain, 54% Obama - Catholics^{1,4,6,8,9,10,11,12}
45% McCain, 54% Obama - Catholic¹⁴
xx% McCain, 59% Obama - Semi-annual church-goers⁴**
38% McCain, 61% Obama - Occasional churchgoers¹
37% McCain, 61% Obama - Non-weekly-mass-attending Catholics^6,12
28% McCain, 62% Obama - Other faiths¹⁴
30% McCain, 67% Obama - Hispanics¹³****
xx% McCain, 67% Obama - Hispanic Catholics^8,11**,***, ****
xx% McCain, 67% Obama - Hispanic Protestants and other Christians¹¹**, ****
xx% McCain, 68% Obama - Don't attend church⁴ **
22% McCain, 73% Obama - Other faiths¹⁴
23% McCain, 75% Obama - Unaffliliated with any religion¹¹
23% McCain, 75% Obama - Unaffliliated¹⁴
21% McCain, 78% Obama - American Jews^2,8,12 and other faiths¹²
21% McCain, 78% Obama - Jewish¹⁴**
xx% McCain, 94% Obama - Black Protestants^11,13**,****
xx% McCain, 96% Obama - Blacks¹³**,****

** No source provided voting percentages for the other party.
*** Associated Press (citation #11) reports this number as 72%, instead of the 67% other media gave it.
**** Note that some media are reporting the same numbers for the Hispanic and Black vote in general, as well as for those same groups with Catholic or Protestant affiliation.
Citations:
¹ The Awesome Blue God -- How Obama Forged A New Faith Coalition
² Exit polls: 78% of Jews voted for Obama
³ Utah's red loses some of its luster
⁴ Obama's Religious Appeal: Still Missing Evangelicals - which TIME renamed as Obama: Bringing (Some) Evangelicals In
⁵ The Evangelical Electoral Map
⁶ What's wrong with Catholic voters? What's wrong with Catholics?
⁷ Evangelical Voters Favor McCain by Wide Margins
⁸ Catholic voters heavily favored Obama, analysis shows
⁹ What Happened to the Catholic Vote?
¹⁰ Loyal to the End: Evangelicals Stay the Course
¹¹ Obama results show gains in key religious voters
¹² How the faithful voted
¹³ Exit polls: How Obama won
¹⁴ Pew Forum - How The Faithful Voted

All numbers cited above are the earliest ones reported in the press. In cases of multiple reports, some percentages cited were not exact. However, the numbers above are within 2% of all sources cited, lending credence to the general number & placement overall.

Other resources:
With the Help of Catholics…Obama’s Victory
Results! Evangelicals
Mainline Protestants and Latino evangelicals surge toward Obama [pre-election article]
Poll: Latino Protestants switching back to Democrats this election [pre-election article]
The Hispanic Protestant swing vote [pre-election article]
America spoke
Believers in the Pews--and the Polling Booth
McCain Beats Bush on Evangelical Vote