Sen. Cory Gardner (R-Colo.) will vote to confirm President Trump's nominee to replace the late Ruth Bader Ginsburg, he announced in a statement Monday.

Why it matters: The development is a win for President Trump and Senate Majority Leader Mitch McConnell (R-Ky.). It should mean Republicans are all but assured to have enough support to hold hearings for Trump's potential nominee.

• With Gardner's statement, it appeared as though Senate Republicans had the votes to approve Trump's nominee, barring any major complications."
• Gardner's position on the issue was under heightened scrutiny as he faces a tough reelection bid in Colorado this November.

Where it stands: Two Republican Senators — Sens. Lisa Murkowski (R-Alaska) and Susan Collins (R-Maine) — have said that they do not support rushing through a confirmation vote before November.

• Two more defections would likely force Senate Majority Leader Mitch McConnell (R-Ky.) to resort to holding a vote in the lame-duck session, which neither Murkowski nor Collins have addressed.

What he's saying: "When a president exercises constitutional authority to name a judge for the Supreme Court vacancy, the Senate must decide how to best fulfill its constitutional duty of advice and consent," Gardner wrote.

• "I have and will continue to support judicial nominees who will protect our Constitution, not legislate from the bench, and uphold the law. Should a qualified nominee who fits this criteria be put forward, I will vote to confirm."