The two Republican senators, Josh Hawley and Todd Young, flipped their votes after having backed the measure in a procedural vote last week, enabling the GOP-led chamber to sink the resolution.

U.S. Senate Republicans blocked a resolution on Wednesday that would have barred U.S. President Donald Trump from further military action in Venezuela without authorization from Congress, after the Republican president pressured party members who had supported ​it.

The White House's efforts to quell Senate Republican opposition to its actions in Venezuela came to a head with a maneuver to kill a war powers bill.

A war powers resolution that would've required Congressional approval before additional military action in Venezuela failed to advance in the Senate after two Republicans flipped their votes.