President Trump began his address to a joint session of Congress, four questions were on the minds of veteran political observers.
First, would the tone of the speech repeat, or break with, the bleak vision of the president's inaugural address?
Second, would Mr. Trump help his own party resolve the internal disagreements that have stalled progress on his legislative agenda?
Third, would he extend a meaningful olive branch to Democrats?
And finally, would he offer any surprises that might reconfigure the political terrain?