Senate Minority Leader Charles Schumer Chuck SchumerPelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' 3 reasons why Biden is misreading the politics of court packing Cruz blocks amended resolution honoring Ginsburg over language about her dying wish MORE (D-N.Y.) is appearing bullish about Democrats' chances to peel off enough GOP votes to block legislation aimed at repealing and replacing ObamaCare.

Schumer said Wednesday that if Majority Leader Mitch McConnell Addison (Mitch) Mitchell McConnellDemocratic senator to party: 'A little message discipline wouldn't kill us' House to vote on resolution affirming peaceful transition of power Republican lawyers brush off Trump's election comments MORE (R-Ky.) pushes to advance legislation before the July 4 holiday recess, Democrats will move to block it.

"The only way you can get on [with] a bill is called the motion to proceed. ... Our whole focus if McConnell will bring this up right before July Fourth is to get three votes against the motion to proceed, and we think we have a damn good chance," Schumer told "Pod Save America," a podcast run by former Obama administration staffers.

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Schumer added that it was the "number one goal" of the Democratic caucus to try blocking the legislation — which is yet be finalized — on an initial procedural hurdle.

If Democrats aren't able to win over three Republicans, Schumer said that "everything is on the table."

"This is full-scale warfare. ... We're not going to be complacent or going along or business as usual," he said.

Democrats have limited options for slowing down the bill once it gets to the Senate floor.

Liberal activists are urging them to try to block the healthcare bill or force Republicans to hold a hearing by filing thousands of amendments once the Senate's bill is on the floor.

Schumer added that forcing votes on hundreds of amendments was a "possibility" but Democrats needed to look into if Republicans could shut them down on the Senate floor.

Republicans are expected to release a "discussion draft" of their bill on Thursday as leadership eyes holding a vote next week.

The move would allow them to have a vote before the July 4 recess, freeing up July to move on to other policy issues if the bill fails or merge their legislation with the House's if it passes.

Republicans have a narrow window to pass legislation. They hold 52 seats, meaning they can only afford to lose two GOP senators and still have Vice President Pence cast a tie-breaking vote.

Schumer's comments come as top Republicans are also signaling increasing confidence about their chances of passing a bill.

"It's my job to find 50 votes, and we're going to have 50 votes. ... I just don't see [us] doing nothing," Sen. John Cornyn John CornynHillicon Valley: Productivity, fatigue, cybersecurity emerge as top concerns amid pandemic | Facebook critics launch alternative oversight board | Google to temporarily bar election ads after polls close Lawmakers introduce legislation to boost cybersecurity of local governments, small businesses On The Trail: Making sense of this week's polling tsunami MORE (R-Texas) told reporters on Tuesday, when asked if Republicans would bring up a healthcare bill even if they thought it would fail.