by Tim Golden

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In what could be a significant escalation of U.S. pressure on Mexico, the Trump administration has begun to impose travel restrictions and other sanctions on prominent Mexican politicians whom it believes are linked to drug corruption, U.S. officials said.

So far, two Mexican political figures have acknowledged being banned from traveling to the United States. But U.S. officials said they expect more Mexicans to be targeted as the administration works through a list of several dozen political figures who have been identified by law enforcement and intelligence agencies as having ties to the drug trade.

The list includes leaders of President Claudia Sheinbaum’s governing party, several state governors and political figures close to her predecessor, former President Andrés Manuel López Obrador, the U.S. officials said. They insisted on anonymity to discuss sensitive policy plans.

The governor of the Mexican state of Baja California, Marina del Pilar Ávila, confirmed that she and her husband, a former congressman, were told their U.S. visas were revoked because of “a situation” involving her husband. “The fact that the State Department has cancelled my visa does not mean that I have committed something bad,” she said at a news conference on Monday.

Sheinbaum said her government had asked U.S. officials to explain why Ávila was stripped of her visa but had been told that such matters are private and no further information was given.

The visa actions represent the latest political challenge for the new Mexican leader and her leftist National Regeneration Movement, known as Morena. Despite the country’s historic sensitivity to any hint of U.S. meddling, Sheinbaum has thus far bolstered her support at home by........

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