The Democrats have made Robert F Kennedy Jr “so angry” after doing “everything they could” to “subvert his candidacy”, it has been claimed. The 70-year-old independent candidate, who failed his attempt at the Democratic primary race, is reported to be making a keynote speech on Friday as the Democratic National Convention (DNC) continues. With Donald Trump also set to hold a campaign rally on Friday, speculation is rife as to whether the nephew of JFK will drop out of the race to “join forces” with the Republican candidate. Kennedy’s running-mate Nicole Shanahan said: “There’s two options that…