Sen. Ted Cruz called it a "wake-up call for internationalist bureaucrats."
One vote will be on a bipartisan measure backed by Sen. Susan Collins.
Senate Republicans are expected to bring a bipartisan gun control bill to a vote this week.
All four measures were expected to fail — and did.
Rubio on Wednesday said he is reconsidering his decision not to run for reelection.
Democrats want to bar suspected terrorists from acquiring guns or explosives.
The Senate leader has urged GOP colleagues in private to avoid distracting political fights.
Her defeat is clouding Senate Democrats’ new push.
McConnell called on Trump to stop attacking former competitors and minority groups.
Paul Ryan is trying to have it both ways with Donald Trump.
Republicans face an uphill road to keeping their Senate majority in the November election.
"It’s unconscionable that the Senate refuses to act," one House chairman says.
Reid doesn't want a senator from a state with a GOP governor.
The White House won't say whether it would veto the Senate bill but is "encourged" by it.
"He ... has a Dr. Jekyll and Mr. Hyde personality," McConnell writes in his forthcoming memoir.
The starkly different messages showed off a Democratic split that is getting worse.
Reid was expecting Sanders to condemn unruly behavior at Nevada's convention.
House Republicans are plowing ahead with their first spending bill of the year.
Dan Sullivan channels criticism from former President Bill Clinton to slam President Obama.