Cory Booker may have delivered the final blow to Bob Menendez's career even if the embattled Democrat refuses to resign

• Sen. Cory Booker may have killed what remained of Sen. Bob Menendez's lengthy political career.
• The New Jersey Democrats were once virtually inseparable.
• But on Tuesday, Booker joined the growing chorus for Menendez to step aside.

Sen. Cory Booker once cast himself as the sidekick to his mentor, Sen. Bob Menendez, vowing to stand by his fellow New Jersey Democrat despite corruption allegations. On Tuesday, he decided that his partner's alleged crimes were too much.

In doing so, Booker may have squelched what remained of Menendez's lengthy political career in the wake of a shocking corruption indictment.