Donald Trump has increased his national lead in the Republican presidential primary but seems set to face a closer tussle with his chief rival, Ron DeSantis, in the crucial first two states to vote, new polls show.
On Monday, a new survey from the Center for American Political Studies at Harvard and the Harris Poll gave the former president a 26-point national lead over the Florida governor, by 50% to 24%, a four-point gain since February.
