The president demonised Democrats in an attempt to wangle votes in midterms despite backlash over Iran warWith his approval rating at a historic low, Donald Trump has brought down the curtain on the Republicans’ first ever midterm convention by pleading with supporters to do him “the biggest favour” and “pretend” they are voting for him in November’s US elections.The president is facing a growing backlash over rising prices and the war in Iran. Sweeping losses for the Republican part