Washington, Mar 21 (IANS): Former US Vice President Joe Biden will join Democrat leaders at on Wednesday in a rally to save Obamacare, a day before House Republicans vote to dismantle the health law, a media report said.

Biden will join House Minority Leader Nancy Pelosi and other House Democrats on the front steps of the Capitol at 10 a.m., making one of his first major appearances since leaving office in January, according to a press advisory obtained by Politico news.

The event, which also will feature Americans who have benefited from the law, is being billed as a celebration marking the seventh anniversary of the Affordable Care Act, which was signed into law March 23, 2010.

House Republican leaders have scheduled a vote on their Obamacare repeal bill for Thursday.

Republican leaders and top White House officials have been working the phones since the weekend to round up Republican votes for the bill but passage is still not guaranteed. Accounting for current House vacancies, 216 votes are needed to pass the bill.

Pelosi on Sunday slammed the Republican plan, which she has taken to calling "TrumpCare", as well as the White House budget.

"What Republicans have put forth is a terrible bill - 24 million people kicked off of health insurance which the Speaker calls ‘an act of mercy'," she told CBS News.