This is pure ends-justify-the-means logic. And the means are pushing falsehood. The notion here seems to be that Trump is helping America avoid perdition, and thus must be given leeway to lie; if we didn’t allow him to lie, the left would continue to do so, and then they’d win and drive us straight into Hell. But that suggests that truth no longer has the capacity to drive voters or Americans. If that’s true, republicanism is finished as a principle – if we can only lie to voters to get them to vote for us, that undermines the decency of republicanism altogether.