US President Donald Trump's Republican Party has taken a step closer to staging a highly unusual party convention to prop him up and sell his message to voters ahead of crucial midterm elections in November.

At a meeting in Santa Barbara, California, the Republican National Committee (RNC) voted Friday to amend party bylaws to clear the way for a planned midterm convention, as polling shows support for the 79-year-old president waning.

Originally published on doc.afp.com, part of the BLOX Digital Content Exchange.