House Republicans are planning to try to open up Democrats' $740 billion tax, climate and health care bill to a legal challenge after it passes, Axios has learned.

Why it matters: The move is Republicans' way of showing their base that they're going to great lengths to kill the legislation, which is likely to be unanimously opposed by House Republicans.

• "I would be shocked if anybody [in the GOP] voted for it," said Rep. Drew Ferguson (R-Ga.), the House Republican chief deputy whip.

Driving the news: Republicans, led by members of the right-wing House Freedom Caucus, plan to get "as many members as possible to vote by proxy" in order to deny Democrats a physical quorum, two senior Republican aides told Axios.

• The bill would still pass, but Republicans hope a company affected by the tax provisions in the bill will then sue to challenge the law's constitutionality.
• Fueling their plan is the fact that so many members are voting by proxy: there were 187 active proxy letters as of Friday afternoon, according to the House Clerk's office.

Context: The Constitution requires Congress to have a simple majority of its members present to pass legislation — in other words, a quorum.

• However, the House passed a resolution at the start of the 117th Congress that stipulates proxy votes count towards that quorum.

Flashback: The Supreme Court in January declined to hear a challenge to proxy voting brought by House Minority Leader Kevin McCarthy (R-Calif.), leaving in place a lower court ruling that the House's ability to make its own rules under the Constitution's speech or debate clause is not subject to judicial review.

• However, one of the aides noted that a court has not weighed in on whether proxy votes count towards a quorum under the Constitution — buoying their hope that the matter could at least be adjudicated in court.