WASHINGTON (AP) — After a 10-day break, members of Congress are returning to work under hefty pressure to respond to the outcry over gun violence. But no plan appears ready to take off despite a long list of proposals, including many from President Donald Trump.

Republican leaders have kept quiet for days as Trump tossed out ideas, including raising the minimum age to purchase assault-style weapons and arming teachers, though on Saturday the president tweeted that the latter was "Up to states."

Their silence has left little indication whether they are ready to rally their ranks behind any one...