Senator Lisa Murkowski (R-Alaska), who is a staunch critic of former US President Donald Trump, has not ruled out the reports of leaving the Republican party.
McDaniel has served as the committee's chair since 2017 but recently stepped down after facing severe criticism for playing a part in Trump's 2020 loss
Senate Minority Leader Mitch McConnell, whose support for aid to Ukraine is increasingly at variance with the rest of the GOP, voted in favour of the bill.