President Trump once again urged Senate Republicans to ditch the filibuster rule in order to pass healthcare reform Sunday morning, stating the world is watching.

"Don't give up Republican Senators, the World is watching: Repeal & Replace...and go to 51 votes (nuke option), get Cross State Lines & more," he tweeted.

Trump has been frustrated by the Senate's inability to pass healthcare reform after Republicans were unable to gather 51 votes to pass a "skinny repeal" measure early Friday morning.

On Saturday, Trump contended Democrats would immediately repeal the 60-vote threshold to end debate that's required on most bills in order to pass their priorities. He has often urged the Senate to end its traditional rules in order to bypass Democrats completely in the upper chamber, which was set up to give the minority party more of a say in legislation.

"Republicans in the Senate will NEVER win if they don't go to a 51 vote majority NOW. They look like fools and are just wasting time," Trump tweeted Saturday. "8 Dems totally control the U.S. Senate. Many great Republican bills will never pass, like Kate's Law and complete Healthcare. Get smart!"

"If the Senate Democrats ever got the chance, they would switch to a 51 majority vote in first minute. They are laughing at R's. MAKE CHANGE!"