He says:
1. It would not make a meaningful longtime contribution to the economy.
It’s already been established that it would create thousands of jobs. So this is ridiculous.
2. The pipeline would not lower gas prices, because gas prices are already low. Huh?
One of the reasons they are low is because of fracking, another one of those things the climate wackos hate.

So he’s saying he didn’t do it because of climate change damage, and the above two reasons aren’t actually a reason NOT to do it. So exactly why did he reject it? Maybe because billionaire Tom Steyer wants him to?