make speed limit 45
Mayor
You want a law passed go to congress. The constitution says "all legislative powers herein granted shall be vested in a congress of the united states. " Trump can't write laws and neither can the supreme court or the attorney general or BATF. But they do it all the time and call it an "interpretation".
https://www.yahoo.com/news/donald-trump-directs-justice-department-211146879.html
feb 20m 2018 President Donald Trump announced he has ordered Attorney General Jeff Sessions to take steps to ban bump stocks, the type of gun modification that Las Vegas shooter Stephen Paddock used to kill 58 people in October.
“Just a few moments ago, I signed a memorandum directing the attorney general to propose regulations to ban all devices that turn legal weapons into machine guns,” Trump said Tuesday while speaking at a medal of valor ceremony at the White House. “I expect that these critical regulations will be finalized ... very soon.”
In 2010 and again in 2012, the Bureau of Alcohol, Tobacco, Firearms and Explosives ruled that it did not have the authority to regulate bump stocks because they are not technically “machine guns,” which federal law defines as firearms that shoot more than one shot per pull of the trigger. As an executive agency, the ATF can’t officially make new laws. Instead, it’s limited to interpreting and enforcing acts of Congress ― in this case, gun control laws passed in 1934 and 1968.