President Kennedy's response to the Cuban Missile Crisis was

overthrow the Soviet government from within the Kremlin
invite Castro to Washington D.C. for peace talks*
send CIA-led forces of Cuban exiles to invade Cuba and overthrow Castro

The Tet Offensive was a significant blow to the U.S. because
the communists proved their will and ability to keep fighting*
it sparked uprisings in South Vietnam
the South Vietnamese turned on the U.S. military

3 answers

Well, I agree with your second answer but I do not remember Fidel at the White House..
https://www.foreignpolicyjournal.com/2010/08/16/kennedy-and-the-cuban-missile-crisis/
There was talk at the time of taking military measures, but the Bay of Pigs was a separate incident.