The argument presented by Laurence Tribe is a non-sequitur. The ability of The House to impeach is not under dispute. What is under dispute is the process being complete or not, and since The Senate has the sole authority to try any impeachment, The House has not completed impeachment until transmitted to The Senate.
Prove it. Show me the part of the constitution that backs your words.
Regardless, I don't know why you think your opinion trumps that of a senior law professor from Harvard. And my Harvard law professor is more tenured than yours, so... I win.