Reagan pledged to slim down government, and he said the Department of Education would be an early target to go. Instead, he oversaw the addition of yet another cabinet level department, and doubled the size of the federal government. All that with cutting taxes and writing bad checks. Okay, Congress wrote the checks, but Reagan signed every one.
He whined for a line item veto like every other president. Most figured it was a waste of time because the Constitution of the United States does not allow for selective parts of a bill to be voided by the Executive branch. While Reagan didn't get that wish, it was tested in 1996, and lo and behold, it was found unconstitutional by the Supreme Court. (Funny how that works.) So, even if Reagan had the line item veto, it would not have lasted very long.
Give me an ability to write unlimited bad checks and I can make myself and all my friends and family look very prosperous. Reagan did nothing different during the Reaganomic years. I have no children. I hope yours, and your grandchildren, are happy to pay your share of the flagrantly outrageous spending. I hope they can pay my share, too.