He should come and properly demonstrate both the dysfunction of the Republican US Congress and the Israeli subjugation of the US foreign policy.
Nothing like Israeli PM disrespecting the elected president of the United States and conducting foreign policy with the opposition Speaker of the House to make it crystal clear.
Update: With Sheldon Adelson taking attendance and using a post Republican SCOTUS Citizens United decision super PACs to bash those who don't attend or applaud a foreign leader challenging the President of the United States, well, this is just perfect.
If someone wanted to come up with a fictional story plot representing the full level of conservative legalized corruption of this country, they could hardly have done better.
They really dotted all the i's and crossed all the t's on this one.