Republican Senate candidate Mark Walker of North Carolina is pushing back against a prediction by Sen. Lindsey Graham of neighboring South Carolina. Graham, a major ally and supporter of former President Donald Trump, says the vote by retiring GOP Sen. Richard Burr of North Carolina on Saturday to convict Trump in his impeachment trial will make the former president’s daughter-in-law – Lara Trump – a shoe-in to win the 2022 Republican nomination to succeed Burr. "The biggest winner of this whole impeachment trial I think is Lara Trump," Graham forecast on "Fox News Sunday." "My dear friend Richard Burr, who...