Sen. Flake: GOP must stand against Trump's behavior 'or lose that chance'

Sen. Jeff Flake, R-Ariz., accompanied by his wife Cheryl, leaves the Capitol in Washington on Tuesday after announcing he won't seek re-election in 2018.
Sen. Jeff Flake, R-Ariz., accompanied by his wife Cheryl, leaves the Capitol in Washington on Tuesday after announcing he won't seek re-election in 2018.