The Senate set a new record for the longest vote in modern history Friday as the chamber votes on restricting President TrumpDonald John TrumpHarris bashes Kavanaugh's 'sham' nomination process, calls for his impeachment after sexual misconduct allegation Celebrating 'Hispanic Heritage Month' in the Age of Trump Let's not play Charlie Brown to Iran's Lucy MORE's ability to take military action against Iran without congressional approval. 
 
The Senate is normally out of town on Friday, but stuck around to give 2020 Democratic candidates a chance to vote on the amendment, from Sens. Tim KaineTimothy (Tim) Michael KaineBolton exit provokes questions about Trump shift on Iran Overnight Defense: Dems grill Trump Army, Air Force picks | House chair subpoenas Trump Afghanistan negotiator | Trump officials release military aid to Ukraine Air Force nominee: Setting up Space Force would be 'key imperative' MORE (D-Va.) and Tom UdallThomas (Tom) Stewart UdallOvernight Energy: Trump administration to repeal waterway protections| House votes to block drilling in Arctic refuge| Administration takes key step to open Alaskan refuge to drilling by end of year Defense Department says "forever chemical" cleanup costs will dwarf earlier estimates Senators from both parties offer resolution to nix Trump emergency declaration to build wall MORE (D-N.M.), that would block Trump from using funding to take military action against Iran without congressional approval. 
 
The vote clocked in at 10 hours when it wrapped up just after 3 p.m.
 
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In an effort to balance the 2020 demands and senators who had already planned trips, the Senate came into session at 5 a.m., several hours earlier than a normal week day. 
 
Several senators voted within minutes of the vote opening, including Sens. Dick DurbinRichard (Dick) Joseph DurbinTrump defends push to ban flavored e-cigarettes: Let's 'keep young children from Vaping!' Overnight Defense: Dems grill Trump Army, Air Force picks | House chair subpoenas Trump Afghanistan negotiator | Trump officials release military aid to Ukraine Overnight Health Care: Juul's lobbying efforts fall short as Trump moves to ban flavored e-cigarettes | Facebook removes fact check from anti-abortion video after criticism | Poll: Most Democrats want presidential candidate who would build on ObamaCare MORE (D-Ill.), Martha McSallyMartha Elizabeth McSally The 13 Republicans needed to pass gun-control legislation McSally knocks Arizona GOP official's call for supporters to stop Mark Kelly 'dead in his tracks' Top Arizona GOP official asks supporters to help stop 'gun grabber' Mark Kelly 'dead in his tracks' MORE (R-Ariz.), Dan SullivanDaniel Scott SullivanExclusive: Kushner tells GOP it needs to unify behind immigration plan Republicans grumble over Trump shifting military funds to wall Overnight Defense: Esper sworn in as Pentagon chief | Confirmed in 90-8 vote | Takes helm as Trump juggles foreign policy challenges | Senators meet with woman accusing defense nominee of sexual assault MORE (R-Alaska) and Jon TesterJonathan (Jon) TesterGOP Sen. Johnny Isakson to resign at end of year Native American advocates question 2020 Democrats' commitment House Democrats targeting six more Trump districts for 2020 MORE (D-Mont.). 
 
 
Sens. Patty MurrayPatricia (Patty) Lynn MurrayOvernight Health Care: Juul's lobbying efforts fall short as Trump moves to ban flavored e-cigarettes | Facebook removes fact check from anti-abortion video after criticism | Poll: Most Democrats want presidential candidate who would build on ObamaCare Trump's sinking polls embolden Democrats to play hardball Democrats threaten to withhold defense votes over wall MORE (D-Wash.) and Ron WydenRonald (Ron) Lee WydenKey Senate Democrat unveils proposal to tax the rich Overnight Health Care: Trump seeks ban on flavored e-cigarettes | Purdue Pharma nears settlement with states, cities over alleged role in opioid epidemic | Senate panel cancels vote on key spending bill amid standoff Pelosi woos progressives on prescription drug pricing plan MORE (D-Ore.) were overheard talking about their flight times as they exited the Capitol. 
 
And Sen. David Perdue (R-Ga.), spotting reporters as he entered the Capitol, quipped, "You've got to be kidding me? Six a.m., really?" 
 
The previous record for the longest vote in modern history was in December, when senators kept a vote open for more than five hours as they made a failed attempt to avoid a partial government shutdown. 
 
Friday's early voting, and long hours, wasn't without unusual moments. 
 
 
 
After roughly six hours of Republicans presiding over the GOP-controlled chamber, they took an unusual step of letting Democrats preside, with Senate Minority Leader Charles SchumerCharles (Chuck) Ellis SchumerSinema says she would back Kennedy in race against Markey Democrats threaten to withhold defense votes over wall Pelosi: 'People are dying' because McConnell won't bring up gun legislation MORE (D-N.Y.) taking over.  
 
 
There was talk amongst senators that there wouldn't be enough Republican senators in Washington with the start of the Fourth of July recess for them to preside over the Senate for an hours-long last-minute session. 
 
Normally when the Senate is in session one Republican senator presides over the chamber, with the responsibility rotating amongst lawmakers throughout the day. 
 
Tester told reporters on Thursday that Democrats were being lined up to help preside over the chamber, adding, "I never saw it happen when we were in the majority."