On Thursday, Kelly and Trump's secretary of state, Rex Tillerson, will go to Mexico to meet with President Enrique Pena Nieto. "I think the relationship with Mexico is phenomenal right now and I think there's an unbelievable and robust dialogue between the two nations".
Trump repeatedly targeted Mexico during his presidential campaign, saying the country was sending rapists and drug dealers across the border and insisting that it was taking advantage of the US through the North American Free Trade Agreement.
The immigration issue has caused increasing strain between Mexico and the US, particularly over President Trump's pledge to build a border wall and make Mexico pay for it.
The trip follows the Trump administration's announcement Tuesday of major changes to the enforcement of immigration law at the border of Mexico and in the USA that make nearly anybody in the US illegally subject to deportation at any time.
Mexico's lead negotiator with the Trump administration is slamming new rules from the United States that call for deporting undocumented immigrants to Mexico, regardless of whether they are citizens of that country.
"The release of the implementation guidance was not at all tied to the secretary's trip to Mexico", Gillian Christensen said.
Republican senators unnerved by reports of relationship between Donald Trump and Russian Federation
Trump's job approval rating is much lower than those of past presidents at the same point in their administrations. Democrats are also asking that the findings of the Senate Intelligence Committee's investigation be made public.
The relations between Mexico and the United States were chilly long before disclosure of the deportation plan.
"It's a non-starter", a Mexican official familiar with the situation said, switching to English for emphasis.
US Department of Homeland Security (DHS) Secretary John Kelly.
Mexican officials are not happy with President Donald Trump's new immigration enforcement guidance, but the White House says things are just peachy between the two countries, Politico reports.
Several immigration law experts said they had simply never heard or seen cases where this statute had been deployed. Mexican officials, for their part, have denied Trump issued any threats during the conversation. He said he wanted to reduce references to Mexico paying for the proposed wall because he didn't support a wall being built at all.
"If you enter the USA illegally, there's a provision in law ... that authorizes the department to put that person back into Mexico", a DHS official, who also requested anonymity, said.