Cruz himself (or staff of course) has been tweeting periodically on this today: .
https://twitter.com/tedcruz
Cruz was on Chuck Todd and "Meet The Press", he has video clips at his twitter page...
https://twitter.com/MeetThePress/status/1203745373459828736
And Cruz also has linked to the
Daily Caller, Right Scoop, a lot of activity.
I am not sure if Trump was perfectly fair to the Ukraine and their president but that's not what impeachment is about, it's about hard cold facts.
Cruz just tweeted again on this in the 30 minutes... so this is a fairly big story.