President Trump called again for the Senate to do away with the legislative filibuster and allow bills to pass with 51 votes, a simple majority, after a "skinny" bill repealing some parts of Obamacare failed in the Senate early Friday morning.

"If Republicans are going to pass great future legislation in the Senate, they must immediately go to a 51 vote majority, not senseless 60..." Trump tweeted. "Even though parts of healthcare could pass at 51, some really good things need 60. So many great future bills & budgets need 60 votes."

If Republicans are going to pass great future legislation in the Senate, they must immediately go to a 51 vote majority, not senseless 60... — Donald J. Trump (@realDonaldTrump) July 28, 2017

The president has in the past advocated changing Senate rules to operate on a majority-vote basis, as the House does.

But the healthcare bill that failed in the Senate on Friday needed only 51 votes to pass, and three Republicans — Susan Collins of Maine, John McCain of Arizona, and Susan Collins of Maine — joined Democrats in opposing the bill.

The bill was ultimately voted down, 49-51.

Vice President Mike Pence was on hand to cast a tie-breaking vote if needed, but ultimately, fewer than 50 Republicans backed the "skinny" bill.