It helps give mainstream exposure to Bitcoin. Especially with a high profile politician as Donald Trump. I know the Lightning Network is flawed, but it's at least a good way to drive the masses into BTC. With due time, the LN should be able to improve until it becomes a "force to reckon with". We need as many pro-crypto politicians in Bitcoin as possible.
Of course. Some of them publicly claim their support for BTC just to gather votes. Once they're in power, they totally forget about it. Just like how Argentina's Javier Milei forgot about Bitcoin. Was he able to abolish the Argentine Central Bank? No. Was he able to replace the Argentine Peso with either the USD or BTC? No. The same thing could happen with Donald Trump after he's re-elected for President of the United States. Who knows?