President Trump wants to suspend the federal gas tax, telling CBS News Monday that he thinks “it’s a great idea.”“We’re going to take off the gas tax for a period of time, and when gas goes down, we’ll let it phase back in,” Trump said in a phone interview. It’s a tacit admission that the effects of the Iran war aren’t going away anytime soon.Gas prices have gone up 50 percent since the war started February 28, and cost an average of $4.52 per gallon in the U.S. as of this writing. As long as Iran (and the United States) block transit to and from the Strait of Hormuz, those prices will stay high. Pausing the federal taxes on fuel would amount to 18.4 cents less per gallon of gas and 24.4 cents less per gallon of diesel, but doing so requires an act of Congress.Republicans in Congress are already working to carry out the president’s wish. Senator Josh Hawley and Representative Anna Paulina Luna said Monday that they plan to introduce bills in the Senate and House, respectively. If they’re successful, pausing the gas tax would cost the federal government half a billion dollars per week, money that pays for highway maintenance and other transportation projects.Meanwhile, a peace deal with Iran is far away. Trump said Monday that the current ceasefire was on “massive life support” after he rejected Iran’s latest proposal as “TOTALLY UNACCEPTABLE” the day before. If the ceasefire ends and the U.S. resumes strikes against Iran, that would only send oil prices even higher, wiping out whatever temporary relief Americans get from the tax pause.Trump’s poll numbers are already historically low. Does he think he can fool the American people with a temporary measure?