WASHINGTON, May 5 (Reuters) – China is slowing its efforts to repatriate Chinese nationals who are in the US illegally, a senior Trump administration official ​told Reuters, warning that Washington was prepared to increase travel restrictions on the country if Beijing didn’t reverse course. The new US threat toward China ‌comes just days before President Donald Trump’s planned May 14-15 visit to Beijing, where, among other issues, he is expected to raise the deportation issue during meetings with his counterpart, Xi Jinping . The trip is an important one for Trump, who is hoping to win trade concessions from Beijing that he can present to voters ahead of November’s midterm elections that polls suggest could deliver losses for the ​president’s Republican party. Chinese migrants cross the border at Campo, a remote stretch of the Mountain Empire area of southeastern San Diego County, on April 11, 2024.…