Blackmail?

In 1995, Congress passed a law requiring the federal government to move the U.S. embassy from Tel Aviv to Jerusalem. Bill Clinton, George W. Bush, and Barack Obama all campaigned on relocating the embassy and executing this law. But once in office, every one of them invoked a waiver in the law that allows them to hold off on the move if they deem it necessary to the national security interests of the United States to do so.

[...]

A trio of GOP senators [Florida Sen. Marco Rubio, Texas Sen. Ted Cruz, and Nevada Sen. Dean Heller] have introduced legislation that would cut security, construction, and maintenance funds for U.S. embassies around the world in half [except for the embassy in Tel Aviv] until the president moves the American embassy in Israel to Jerusalem.

  The Intercept

Is that not a matter of national security?

Ironically, Cruz and Rubio loudly attacked the Obama administration for failing to properly secure the U.S. consulate in Benghazi, Libya.

[...]

Eight months after the attack, Cruz wrote in the National Review: “Our brave men and women who continue to put their lives on the line every day in similar, dangerous situations deserve to know we are doing everything possible not only to protect them in the event of a terrorist attack, but also to deter these attacks from happening again. Better late than never.”

In the summer of 2016, Rubio lamented in a Breitbart post that “leadership was sadly lacking in this case and resulted in disaster” and called on the government to properly secure diplomats in the future.

It may be ironic, but it's par for the Congressional course.

...but hey, do what you want...you will anyway.