Sen. Susan CollinsSusan Margaret CollinsHouse passes sweeping protections for LGBTQ people Grassley to vote against Tanden nomination Klain on Manchin's objection to Neera Tanden: He 'doesn't answer to us at the White House' MORE (R-Maine) said on Monday that she will support the GOP tax plan as leadership appears to have the votes to pass the bill. 

"I rise to express my support for the conference agreement on the Tax Cuts and Jobs Act. ... This legislation will provide tax relief to working families, encourage the creation of jobs right here in America and spur economic growth that will benefit all Americans," Collins said from the Senate floor. 
 
She added that "most Maine households with see their taxes go down." 
 
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Senate Republicans believe they have the votes to pass the tax plan as soon as Tuesday evening. 
 
With a 52-seat majority, they can only afford to lose two GOP senators and still let Vice President Pence break a tie. 
 
Sen. John McCainJohn Sidney McCainCindy McCain planning 'intimate memoir' of life with John McCain Trump-McConnell rift divides GOP donors Arkansas state senator says he's leaving Republican Party MORE (R-Ariz.) is expected to miss the tax vote, and Sen. Jeff FlakeJeffrey (Jeff) Lane FlakeGrassley to vote against Tanden nomination Klain on Manchin's objection to Neera Tanden: He 'doesn't answer to us at the White House' Tanden's path to confirmation looks increasingly untenable MORE (R-Ariz.), who supported the Senate bill, hasn't said if he will back the conference agreement. But GOP Sens. Bob CorkerRobert (Bob) Phillips CorkerIt's time for Biden's Cuba GOP lawmaker patience runs thin with Trump tactics Former GOP senator: Republicans cannot let Trump's 'reckless' post-election claims stand MORE (Tenn.), Marco RubioMarco Antonio RubioThe Hill's 12:30 Report - Presented by Facebook - Divided House on full display Mehdi Hasan gets MSNBC Sunday prime-time show Haley isolated after Trump fallout MORE (Fla.) and Mike LeeMichael (Mike) Shumway LeeOVERNIGHT ENERGY: Key vote for Haaland's confirmation | Update on oil and gas leasing | SEC update on climate-related risk disclosure requirements Haaland on drilling lease moratorium: 'It's not going to be a permanent thing' Overnight Health Care: US surpasses half a million COVID deaths | House panel advances Biden's .9T COVID-19 aid bill | Johnson & Johnson ready to provide doses for 20M Americans by end of March MORE (Utah), three key holdouts, have said they will support the bill. 
 
Collins supported the Senate's version after getting her amendments included in the bill, as well as a promise from Senate GOP leadership to pass the bills aimed at stabilizing the individual health insurance market under ObamaCare. 
 
Several amendments that Collins offered were incorporated into the bill, including the restoration of a $10,000 deduction for state and local property taxes and a lower threshold for deducting medical expenses.