Ron DeSantis doubles down on rightwing agenda in glitchy Twitter campaign launch – as it happened

Florida governor took swipes at the media and NAACP during trouble-plagued announcement

• Full report: DeSantis confirms he is running for Republican nomination

With the executive and legislative branches locked in a standoff over raising the debt ceiling, let's check on the third branch of government: the judiciary. The Guardian's Martin Pengelly reports that supreme court chief justice John Roberts gave a speech in which he vowed that the court would maintain the highest ethical standards, despite allegations of improper ties between some justices and parties with interests in their cases:

The chief justice of the US supreme court, John Roberts, said he and the other justices were working to hold themselves to the highest standards" of ethical conduct.