How is this Trump's or Hegseth's fault. The first plane was lost when the carrier made a radical turn to evade an incoming missile attack (successfully).
At the time, the brown shirts (flight deck crew that moves and secures planes) were moving the plane onto an elevator to take it to the flight deck. The plane, along with its tractor, rolled off the elevator, with the crew abandoning the tractor and getting clear of the plane to not fall overboard with it.
The second event was a plane that was a 'bolter' due to a failed arrestor cable. The plane had slowed below its stall speed and couldn't get enough speed back up to make a go-around and try again to land. The result was the crew ejected as the plane was going to crash having run off the angle.
These situations are primarily caused when there aren't sufficient crew for good watch rotations and those in the crew have little experience--eg., high turnover with low reenlistment. The Navy in good part brought this on themselves over the last two decades.
The other problem is a combination of the Navy and Congress not funding things that would increase personal retention and the recruitment of higher quality crew.