The | West Wing - Season 6

: Frustrated with the lack of viable Democratic candidates, Josh Lyman leaves the White House to run the dark-horse presidential campaign of Texas Congressman Matt Santos .

: The Republican side sees the rise of Senator Arnold Vinick , a moderate Californian who presents a formidable challenge to the Democrats. The West Wing - Season 6

: The season opens with President Bartlet attempting to broker peace between Israel and Palestine. This creates a historic rift between Bartlet and his Chief of Staff, Leo McGarry, who believes the mission is a mistake. : Frustrated with the lack of viable Democratic

: Following a heart attack during the summit, Leo steps down as Chief of Staff. In a surprising move, Bartlet appoints Press Secretary C.J. Cregg as his successor, forcing her to navigate a steep learning curve and the President's worsening multiple sclerosis. This creates a historic rift between Bartlet and