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

Sen. Susan CollinsSusan Margaret CollinsSchiff pleads to Senate GOP: 'Right matters. And the truth matters.' Senate Republicans confident they'll win fight on witnesses Susan Collins asked Justice Roberts to intervene after Nadler late-night 'cover-up' accusation MORE (R-Maine) has cast more than 5,500 consecutive votes since she was sworn into office in 1997. Reps. Justin AmashJustin AmashSanders co-chair: Greenwald charges could cause 'chilling effect on journalism across the world' Trump rails against impeachment in speech to Texas farmers Overnight Defense: Foreign policy takes center stage at Democratic debate | House delivers impeachment articles to Senate | Dems vow to force new vote on Trump's border wall MORE (R-Mich.) and Steve WomackStephen (Steve) Allen WomackDemocrats don't expect to do 2020 budget Tom Cotton's only Democratic rival quits race in Arkansas Lawmakers dismiss fresh fears of another government shutdown MORE (R-Ark.), who were elected in 2010, have also not missed a vote. The others are Sen. Deb FischerDebra (Deb) Strobel FischerThe Hill's Morning Report — Impeachment unknowns await returning lawmakers Pressure builds over impeachment impasse in Senate Trump faces pivotal year with Russia on arms control MORE (R-Neb.) and Reps. Derek KilmerDerek Christian KilmerHouse extends Select Committee on the Modernization of Congress for another year Progressive freshmen jump into leadership PAC fundraising Hillicon Valley: Zuckerberg to testify on Libra | Extremists find home on Telegram app | Warren blasts Facebook for not removing anti-Biden ad | California outlaws facial recognition in police body cameras | China rips US tech sanctions MORE (D-Wash.) and David Jolly (R-Fla.).

This Congress, 12 other members have logged perfect attendance records, including Sen. Charles SchumerCharles (Chuck) Ellis SchumerSchumer urges declassification of letter from Pence aide No rush to judgment on Trump — it's been ongoing since Election Day Collins walks impeachment tightrope MORE (D-N.Y.) and House Majority Whip Kevin McCarthy (R-Calif.).

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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

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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 DonnellyGinsburg health scare raises prospect of election year Supreme Court battle Watchdog accuses pro-Kavanaugh group of sending illegal robotexts in 2018 Lobbying world MORE (D-Ind.)

Deb Fischer (R-Neb.)

Chuck GrassleyCharles (Chuck) Ernest GrassleyTrump to sign USMCA next Wednesday Trump administration releases rule to restrict 'birth tourism' On The Money — Presented by Wells Fargo — Grassley signs USMCA, sending it to Trump's desk | Union membership falls to record low | Manufacturers want Trump tax provision made permanent | Warren presses banks on climate plans MORE (R-Iowa)

Kay HaganKay Ruthven HaganGOP braces for Democratic spending onslaught in battle for Senate Democrats will win back the Senate majority in 2020, all thanks to President Trump The Hill's Morning Report - Presented by Better Medicare Alliance - Dems shift strategy on impeachment vote MORE (D-N.C.)

Charles Schumer (D-N.Y.)

Ron WydenRonald (Ron) Lee WydenHillicon Valley — Presented by Philip Morris International — Bezos phone breach raises fears over Saudi hacking | Amazon seeks to halt Microsoft's work on 'war cloud' | Lawmakers unveil surveillance reform bill Bezos phone breach escalates fears over Saudi hacking Top intel office fails to meet deadline to give Khashoggi report to Congress: report MORE (D-Ore.)

House

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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.)

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Billy Long (R-Mo.)

Kevin McCarthy (R-Calif.)

David McKinleyDavid Bennett McKinleyKoch campaign touts bipartisan group behind ag labor immigration bill 'Minor league cities' need new federal partnership The missing piece of the current health care debate MORE (R-W.Va.)

Steve Womack (R-Ark.)

 

Vivian Hughbanks contributed.