2016 opponents, politicians, and celebrities react to Marco Rubio’s announcement

Republican Sen. Marco Rubio officially announced his 2016 presidential campaign Monday, telling a lively crowd that the time has come for “a new American century.”

Rubio’s 2016 opponents, politicians on both sides of the aisle, and celebrities took to Twitter to respond to the rising star’s official entry into the race:

Marco Rubio

2016 opponents, politicians, and celebrities react to Marco Rubio's announcement