What makes you think these visits aren't being taken with the full knowledge and blessing
of this administration...dealing with foreign nations...especially China...is serious "Hard Ball"...while you may not agree with the actions being taken, you'd be naive to think that a second visit led by a Democratic Senator was a rogue act...
Again, I don't believe that cowering every time Xi rattles his sabers is sound foreign policy when dealing with a nation's leader who desires to assert his authoritarian vision on the rest of the world...do you?