“Donald Trump is barnstorming the country to boost Republicans in the final weeks of the midterms. But many candidates want to keep that support quiet,” Politico reports.”The president is nowhere to be found in GOP ads, even in red states where Republicans were happy to tout his endorsement two years ago. And some candidates are hesitant to appear with Trump on the campaign trail — even as they hope he will help juice turnout among the MAGA base in November.”