If Reagan had tried this, to help out - say - Margaret Thatcher, there would have been an absolute outcry from the Democrat-controlled Congress.There would have demands for investigations. There would have been demands to know if any taxpayer money was being spent in this effort to play international politics using the resources of the Executive Branch.
And a denial from the White House would not have been enough. No where near. Numerous audits would have been demanded. What White House resources were being used in this attempt to interfere with the internal politics of a diplomatic ally? Was any classified information being given to one side of a foreign political race? How much of his time was the President spending on this? Were any of his staffers assigned to keep track of the effort?
Here's a link.
Maybe, but Clinton did do it to Netanyahu, and there was no outcry from the eunuchs in congress at the time.
Which is why I'm pleased that we have Cruz, who is not prepared to sit silently while this happens to Netanyahu yet again.