Sen. Rand Paul (R-Ky.) questioned former President Trump's commitment to slashing government spending in a heated exchange with top Trump ally Russell Vought during a recent closed-door meeting, Axios has learned. Why it matters: Paul is among a dwindling number of Republicans who've refused to publicly back the former president as the party's 2024 nominee. And those in Trump's orbit are getting antsy. "There's a growing sentiment in Trumpworld that Rand can't be trusted, and it's a great disappointment," Trump ally and consultant Alex Bruesewitz told Axios. Driving the news: Paul grilled Vought on May 22 over the Trump administration's...