Senate Republicans, except for six of them, have written a letter to Senate Majority Leader Chuck Schumer stating that they will not vote to raise the debt ceiling "without substantive spending and budget reforms." Senate Republican leader Mitch McConnell is also among the signatories. The letter emphasized the divide between Republicans and Democrats in Washington when it comes to addressing the debt ceiling. Republicans have been pushing for spending cuts before increasing the debt ceiling while the Biden administration has refused to negotiate without conditions. Treasury Secretary Janet Yellen has warned that the US could default on its debt as soon as June 1st without immediate action. The refusal to vote by Senate Republicans could spark an economic crisis, delayed Social Security payments, late paychecks, and could hit Americans' investments directly. However, the White House accused Senate Republicans of using the "economic livelihood of millions of Americans" as a negotiating tool. The House passed a bill to raise the debt ceiling with sweeping spending cuts over a decade, but the measure is not passable in the Senate and would not be accepted by the Biden administration even if it were.