tortoise
Wild Hare
I think the Senate can yes, but without the prosecutors from the house (called managers) it would be a defacto aquital because there are no articles or prosecutors present.
After reading my pocket Constitution I also determined the impeachment process begins in the House of Representatives with a vote to impeach. Then the president/vice president/official stands trial for the accusations in the Senate. The Chief Justice of the United States (John Roberts) presides over the impeachment trial.
In all impeachment trials, members of the House serve as prosecutors (managers) and the full Senate sits as the jury. The accused (president/vice president/official) must be convicted by a two-thirds vote of the Senate to be removed from office.
My predictions...
1) Nancy will wait to a short while to send the articles of impeachment to the Senate.
2) POTUS will be aquited (found innocent) of both articles.
3) Trump will win reelection in 2020
4) Republicans will take majority of the house and of course retain majority of the Senate.
5) Nancy will retire in 2020
6) The division between the parties will widen.
Let's see if my spidey senses are even close to being correct.
Coming from someone with opposite political viewpoint (me), I agree with 1, 2, and 6. I doubt #3 and 4 it will depend on voter turnout and the level of fear created by campaign season, #5 not unreasonable