Twenty House Republicans broke with their party last year and voted against the GOP bill to repeal and replace ObamaCare, a measure that Democrats used to hammer vulnerable Republicans in the campaign this year.

Four of those Republicans still lost on Tuesday, despite a move to blunt one of Democrats’ most potent attacks. But nine Republicans, about half, ended up winning.

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Another six retired and so were not up for reelection. Several of them were likely to lose their races if they had run.

Some of the Republicans who won used their votes against ObamaCare repeal last year to show their independence from their party.

Rep. David Joyce David Patrick JoyceRepublicans shrug off Kasich's Democratic convention speech The Hill's Morning Report - Presented by The American Investment Council - Trump takes his 'ready to reopen' mantra on the road GE cutting up to one-quarter of aviation unit's workers MORE (R-Ohio), for example, ran an ad in which he said: “When Republican leaders in Congress tried to take away protections for pre-existing conditions, I said 'no.' ”

Voting "no" on last year’s bill did not stop Democrats from attacking these lawmakers on health care entirely, though.

Some Democratic ads, like one against Rep. Leonard Lance Leonard LanceThomas Kean wins GOP primary to take on Rep. Tom Malinowski Gun debate to shape 2020 races GOP fears Trump backlash in suburbs MORE (R-N.J.), simply cited his votes to repeal ObamaCare in previous years.

Three of the nine Republicans who voted against the GOP ObamaCare repeal bill but won on Tuesday were also conservatives who opposed the bill from the right and did not face competitive reelection races.

Here is the full breakdown of how the 20 Republicans who voted "no" on repeal last year fared:

WON (9)

Andy Biggs (Ariz.)

Walter Jones Walter Beaman JonesExperts warn Georgia's new electronic voting machines vulnerable to potential intrusions, malfunctions Georgia restores 22,000 voter registrations after purge Stacey Abrams group files emergency motion to stop Georgia voting roll purge MORE (N.C.)

Thomas Massie Thomas Harold MassieGOP lawmaker praises Kyle Rittenhouse's 'restraint' for not emptying magazine during shooting Rep. Dan Meuser tests positive for COVID-19 Liz Cheney wins Wyoming GOP primary in reelection bid MORE (Ky.)

Brian Fitzpatrick Brian K. FitzpatrickFlorida Democrat introduces bill to recognize Puerto Rico statehood referendum DCCC reserves new ad buys in competitive districts, adds new members to 'Red to Blue' program 2020 Global Tiger Day comes with good news, but Congress still has work to do MORE (Pa.)

Jaime Herrera Beutler Jaime Lynn Herrera BeutlerCentrist Democrats 'strongly considering' discharge petition on GOP PPP bill This week: House returns for pre-election sprint GOP Rep. Jaime Herrera Beutler advances in Washington primary MORE (Wash.)

David Joyce (Ohio)

John Katko John Michael KatkoThis week: House returns for pre-election sprint Hillicon Valley: Simulated cyberattack success | New bill for election security funding | Amazon could be liable for defective products Lawmakers introduce bill to help election officials address cyber vulnerabilities MORE (N.Y.)

Chris Smith Christopher (Chris) Henry SmithChina sanctioning Rubio, Cruz in retaliatory move over Hong Kong China sanctions Cruz, Rubio, others over Xinjiang legislation New Jersey incumbents steamroll progressive challengers in primaries MORE (N.J.)

Michael Turner (Ohio)

LOST (4)

Mike Coffman Michael (Mike) Howard CoffmanColorado mayor says he called protesters 'domestic terrorists' out of 'frustration' Colorado governor directs officials to reexamine death of Elijah McClain in police custody Petition demanding justice for Elijah McClain surpasses 2 million signatures MORE (Colo.)

Barbara Comstock Barbara Jean ComstockLive coverage: House holds third day of public impeachment hearings Gun debate raises stakes in battle for Virginia legislature Progressives face steep odds in ousting incumbent Democrats MORE (Va.)

Dan Donovan (N.Y.)

Leonard Lance (N.J.)

RETIRED (6)

Ryan Costello Ryan Anthony CostellloTrump struggles to stay on script, frustrating GOP again Bottom line Former GOP Rep. Costello launches lobbying shop MORE (Pa.)

Charlie Dent Charles (Charlie) Wieder DentRepublican former Michigan governor says he's voting for Biden Biden picks up endorsements from nearly 100 Republicans Bush endorsing Biden? Don't hold your breath MORE (Pa.)

Frank LoBiondo Frank Alo LoBiondoVan Drew wins GOP primary in New Jersey Amy Kennedy wins NJ primary to face GOP's Van Drew Stimulus price tag of .2T falls way short, some experts say MORE (N.J.)

Patrick Meehan (Pa.)

Dave Reichert David (Dave) George ReichertWashington Rep. Kim Schrier wins primary Mail ballot surge places Postal Service under spotlight Bottom Line MORE (Wash.)

Ileana Ros-Lehtinen Ileana Carmen Ros-Lehtinen'Trump show' convention sparks little interest on K Street Shalala to face Salazar in Florida rematch TechNet hires Hispanic communications director MORE (Fla.)

TOO CLOSE TO CALL (1)

Will Hurd William Ballard HurdHillicon Valley: Oracle confirms deal with TikTok to be 'trusted technology provider' | QAnon spreads across globe, shadowing COVID-19 | VA hit by data breach impacting 46,000 veterans House approves bill to secure internet-connected federal devices against cyber threats House Democrats' campaign arm reserves .6M in ads in competitive districts MORE (Texas)