Marco Rubio
US election 2016: Trump wins in Mississippi, Michigan
Donald Trump wins two more states, Michigan and Mississippi, in his bid for the White House.
US election 2016: US Republicans express Donald Trump fears
Senior Republicans are speaking out against front-runner Donald Trump after his seven-state victory in the race for the party's presidential pick.
Trump under fierce attack by rivals at rancorous debate
White House hopefuls Ted Cruz and Marco Rubio unleashed a barrage of attacks against Donald Trump during Thursday's raucous Republican debate as they sought to halt the billionaire frontrunner's seemingly relentless march to the party's nomination.
Republican candidates clash over countering IS
Republican presidential candidates spar over national security issues and how best to counter the so-called Islamic State (IS) in the first debate since attacks in California and Paris.
US election 2016: Trump wins in Mississippi, Michigan
Donald Trump wins two more states, Michigan and Mississippi, in his bid for the White House.
US election 2016: US Republicans express Donald Trump fears
Senior Republicans are speaking out against front-runner Donald Trump after his seven-state victory in the race for the party's presidential pick.
Trump under fierce attack by rivals at rancorous debate
White House hopefuls Ted Cruz and Marco Rubio unleashed a barrage of attacks against Donald Trump during Thursday's raucous Republican debate as they sought to halt the billionaire frontrunner's seemingly relentless march to the party's nomination.
Republican candidates clash over countering IS
Republican presidential candidates spar over national security issues and how best to counter the so-called Islamic State (IS) in the first debate since attacks in California and Paris.