Six members of Congress have never missed a vote in their careers on Capitol Hill.

Sen. Susan CollinsSusan Margaret CollinsThe Hill's Morning Report — Mueller aftermath: What will House Dems do now? Collins backs having Mueller testify Graham says he's 'not interested' in Mueller testifying MORE (R-Maine) has cast more than 5,500 consecutive votes since she was sworn into office in 1997. Reps. Justin AmashJustin AmashBipartisan group asks DHS, ICE to halt deportations of Iraqi nationals Overnight Defense: House votes to end US support for Yemen war | Vote expected to force Trump's second veto of presidency | More Russian troops may head to Venezuela | First 'Space Force' hearing set for next week House ignores Trump veto threat, approves bill ending US support for Yemen war MORE (R-Mich.) and Steve WomackStephen (Steve) Allen WomackLeft-center divide forces Dems to scrap budget vote House panel votes to boost spending by 3B over two years Dem spending proposal faces uncertain vote MORE (R-Ark.), who were elected in 2010, have also not missed a vote. The others are Sen. Deb FischerDebra (Deb) Strobel FischerWhy America needs the ability to track enemy missiles from space GOP senators divided on Trump trade pushback Dems accused of seeking revenge for 2013 vote on hurricane relief MORE (R-Neb.) and Reps. Derek KilmerDerek Christian KilmerPro-business Dem group sees boost in fundraising House leaders need to modernize Congress for the sake of America Lawmakers contemplate a tough political sell: Raising their pay MORE (D-Wash.) and David Jolly (R-Fla.).

This Congress, 12 other members have logged perfect attendance records, including Sen. Charles SchumerCharles (Chuck) Ellis SchumerDem legal analyst says media 'overplayed' hand in Mueller coverage Former FBI official praises Barr for 'professional' press conference Pelosi: Barr press briefing a 'staggering partisan effort' MORE (D-N.Y.) and House Majority Whip Kevin McCarthy (R-Calif.).

Rep. Leonard Lance (R-N.J.), who is among the dozen, noted that his state is relatively close to Washington, D.C. But he takes pride in making every roll call, saying when an appointment or meeting conflicts with a vote, “I excuse myself form the office to make sure I am on the floor at the appropriate time.”

For this article, The Hill reviewed roll call data on Congress.gov as well as govtrack.us.

Current members who have never missed a vote

Senate

Susan Collins (R-Maine) (started serving in 1997)

Deb Fischer (R-Neb.) (started serving in 2013)

House

Justin Amash (R-Mich.) (started serving in 2011)

Derek Kilmer (D-Wash.) (started serving in 2013)

Steve Womack (R-Ark.) (started serving in 2011)

David Jolly (R-Fla.) (started serving in 2014)

Current members who have not missed votes in this Congress

Senate

Susan Collins (R-Maine)

Joe DonnellyJoseph (Joe) Simon DonnellySome in GOP fear Buttigieg run for governor Paul Ryan joins University of Notre Dame faculty GOP senator issues stark warning to Republicans on health care MORE (D-Ind.)

Deb Fischer (R-Neb.)

Chuck GrassleyCharles (Chuck) Ernest GrassleyOn The Money: Inside the Mueller report | Cain undeterred in push for Fed seat | Analysis finds modest boost to economy from new NAFTA | White House says deal will give auto sector B boost The 7 most interesting nuggets from the Mueller report Government report says new NAFTA would have minimal impact on economy MORE (R-Iowa)

Kay HaganKay Ruthven Hagan Embattled senators fill coffers ahead of 2020 NC state senator meets with DSCC as Dems eye challenge to Tillis GOP, Dems locked in fight over North Carolina fraud probe MORE (D-N.C.)

Charles Schumer (D-N.Y.)

Ron WydenRonald (Ron) Lee WydenOn The Money: Inside the Mueller report | Cain undeterred in push for Fed seat | Analysis finds modest boost to economy from new NAFTA | White House says deal will give auto sector B boost Government report says new NAFTA would have minimal impact on economy Hillicon Valley: Washington preps for Mueller report | Barr to hold Thursday presser | Lawmakers dive into AI ethics | FCC chair moves to block China Mobile | Dem bill targets 'digital divide' | Microsoft denies request for facial recognition tech MORE (D-Ore.)

House

Justin Amash (R-Mich.)

John BarrowJohn Jenkins BarrowRepublican wins Georgia secretary of state runoff to replace Kemp The most important runoff election is one you probably never heard of Our democracy can’t afford to cut legal aid services from the budget MORE (D-Ga.)

Henry Cuellar (D-Texas)

Charles Dent (R-Pa.)

David Jolly (R-Fla.) (started serving in 2014)

Derek Kilmer (D-Wash.)

Leonard Lance (R-N.J.)

Billy Long (R-Mo.)

Kevin McCarthy (R-Calif.)

David McKinleyDavid Bennett McKinleyDivisions emerge over House drug price bills Key Republican says Dems left him out of process on drug pricing bills Representing patients’ voices MORE (R-W.Va.)

Steve Womack (R-Ark.)

 

Vivian Hughbanks contributed.