Vice President JD Vance is everything, everywhere, all at once, lending a hand to midterm candidates around the country, headlining MAGA Inc., fundraising dinners, and taking questions in the White House briefing room. Sen. Ted Cruz (R-TX) has been a repeat visitor to the early caucus state of Iowa, he hosts a podcast and syndicated radio show, and he has positioned himself as a different kind of Republican from Donald Trump and Vance. And what is Marco Rubio doing to lay the groundwork for a potential 2028 presidential run? Almost nothing. So while Cruz and Vance will both be appearing...