Q: Will the Republican-controlled Senate actually hold an Impeachment trial if the House sends them Articles of Impeachment?

It's not clear that the Senate shall or must; it's just assumed they would, as part of regular order and congressional norms.

But since obliterating established norms is routine for the Trump Party (previously known as the GOP)....I'm wondering if the Senate can just refuse/deny an Impeachment trial, or delay it so long it doesn't happen before the 2020 elections?

And if they can, do you think they will?