Republican Thom Tillis has defiantly vowed to use his final days in the Senate to thwart one of President Donald Trump’s personal crusades. “People say the same thing, that I’m speaking a lot more openly, and I say the same thing—no s–-t, Sherlock,” the North Carolina senator told NBC News, adding that his decision to retire at the end of the year means that now, “I just don’t have to deal with that filter.” Tillis has repeatedly blocked Trump’s efforts to confirm Kevin Warsh—whom the president has nominated to replace Jerome Powell as chair of the Federal Reserve—in protest against a criminal probe the Trump administration has brought against Powell.