He used the tragedy to push through a massive domestic agenda called the :

Johnson arrived in Washington in 1931 as a congressional aide and was elected to the House of Representatives in 1937 as a fierce supporter of FDR’s New Deal. His rise was marked by both legendary work ethic and controversy:

The story of Lyndon Baines Johnson (LBJ) is one of the most dramatic and contradictory arcs in American history—the tale of a "master of the Senate" who rose from rural Texas poverty to reach the pinnacle of power, only to see his legacy fractured by a war he could not win.

: As Senate Majority Leader, LBJ became arguably the most powerful man in Congress. He was famous for the "Treatment"—towering over colleagues, invading their personal space, and using a mix of flattery, threats, and sheer will to force legislation through. The Presidency: The Great Society and Vietnam