WASHINGTON (AP) — As if spotting a mirage in the Southwestern desert, President Donald Trump and his aides are seeing a wall standing along the Mexico border where none exists.

For months Trump has claimed that wall construction is underway and he's brought the matter to the forefront again as the White House presses lawmakers to free up money for what he calls the "remaining sections."

That's like toeing the starting line and contemplating the remaining miles of a marathon.

In an argumentative Oval Office meeting Tuesday, Democratic leaders joined Trump in exaggerating the consequences of a p...