Hardly surprising.
Obama's people are not about to encourage a diplomatic trip by a politcal enemy. And the US diplomatic presence in Mexico is very much headed by one of Obama's people.
Trump’s trip to Mexico was not only unusual for not including his traveling press corps, but also because it came against the advice of US diplomats.
The campaign’s decision to travel to a foreign country — one rife with security risks for a candidate who has stoked tensions with his rhetoric on Mexican immigrants — without reporters following close behind marks an unprecedented moment in the coverage of major party presidential nominees.
In addition, staff at the US Embassy in Mexico advised the Trump campaign against making such a hastily arranged trip, suggesting it would be logistically difficult to organize on such short notice, according to a source familiar with the discussions.
The Trump campaign predictably did not pay attention. Nor should they have. Let's recall who heads up the US diplomatic presence in Mexico.
As assistant secretary of state for the Western Hemisphere, Jacobson testified in a Senate Foreign Relations Committee hearing held May 8, 2014, pursuant to the introduction of legislation (the Venezuela Defense of Human Rights and Civil Society Act of 2014) that sought to revoke the visas and to freeze the bank accounts of Venezuelan officials responsible for serious violations of human rights. In her testimony, Jacobson falsely claimed that opposition leaders from Venezuela’s Democratic Unity Roundtable opposed such targeted sanctions. That was blatantly untrue, but it was the position the Obama administration wanted to peddle at the time. Ultimately, Jacobson was forced to correct the record after being contradicted by the Venezuelan opposition leaders themselves.
Jacobson’s highest-profile assignment, however, was leading U.S. negotiations for normalizing diplomatic relations with Cuba, pursuant to President Obama’s December 17, 2014, initiative. Senators scrutinizing Jacobson’s nomination need look no further than her performance in that role.
Both of those involved radical left-wing causes. And Jacobson was accused of distorting the truth in pursuit of them.
Jacobson had conveyed to the families of Americans murdered by the Cuban regime, pursuant to the 1996 shoot-down of two civilian aircraft by Cuban MiG fighter jets over international waters, that the Cuban spies serving sentences in the United States — in connection with this crime — would not be released as part of any deal with the Castro regime. Yet they were released. Jacobson was obviously not forthright with these families. At a February 2015 hearing of the House Foreign Affairs Committee, Jacobson was unable to deny that these American families were misled and was clearly unapologetic.
But this time she proved unable to sabotage anything.