Even as GOP hawks promote a dangerous new Mideast war with Iran, MAGA Republicans are pursuing a U.S. defeat in a much more critical conflict: Ukraine’s war with Russia. Yes, you read that correctly. On the one hand, Donald Trump decries President Joe Biden’s “weakness and surrender” over a drone attack by a radical Iraqi militia allied with Iran that killed three U.S. troops on Sunday. This has prompted GOP demands that Biden bomb Iran — never mind that this could trigger the wider Mideast conflagration that everyone feared might be provoked by the war in Gaza. Yet, at the same time, also obe…