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First Read: GOP outsiders flex muscles as 2015 comes to an end

One of 2015's most fascinating political stories has been the strength and size of the Republican Party's outsider/anti-establishment wing.

Republican presidential candidate, Sen. Ted Cruz, R-Texas, is seen through Christmas lights as he speaks during a campaign event, Dec. 18, 2015, in Kennesaw, Ga. (Photo by David Goldman/AP)
Republican presidential candidate, Sen. Ted Cruz, R-Texas, is seen through Christmas lights as he speaks during a campaign event, Dec. 18, 2015, in Kennesaw, Ga.AP

Chuck Todd

Chuck Todd is NBC News' chief political analyst and the former moderator of "Meet The Press."

Carrie Dann

Mark Murray