How can Sen. Portman continue supporting Trump?

Sen. Rob Portman did not initially support Donald Trump in 2016. Nevertheless, he has endorsed President Trump for 2020 despite the president’s frequent and verifiable lies, refutation of all national-security reports from our intelligence community, repeated attacks on the media and willingness to launch a government shutdown and to consider declaring a national emergency over “wall” funding.

And also despite Trump’s likely multiple violations of the emoluments clause; demonization of immigrants, attacks on asylum rights, separation of families and failure to reunite children with parents despite a court order; public support of Vladimir Putin on the world stage and dismissal of the intelligence community’s findings regarding Russian election meddling; disregard