: An idealistic but weary Congressman whom Josh convinces to run for president.
: The season concludes with a high-stakes cliffhanger involving a leak of classified information regarding a military space shuttle, which leads to a criminal investigation within the West Wing. Cast and New Characters 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 . : An idealistic but weary Congressman whom Josh
: A principled, popular Republican Senator who becomes the GOP nominee. : A principled, popular Republican Senator who becomes
Season 6 introduced several significant characters who reshaped the show's dynamic:
: 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.
: The Republican side sees the rise of Senator Arnold Vinick , a moderate Californian who presents a formidable challenge to the Democrats.