Cruz will ridicule it and then come out with the same idea.
Sorry, but this is Trump switching positions again, and finally joining WITH Senator Cruz, in this endeavor. The other way around from what you just stated. Cruz pushed this legislation THREE years ago ( see link at bottom)
And just four weeks ago Cruz stated this exact proposal again while campaigning in Oregon - and Trump himself at that time, blasted Cruz for it, and said that he felt the Federal Government was a better steward of the lands, than the states would be, or private enterprises would be.
But I am GLAD Trump has switched positions again, and joined Senator Cruz in this worthy fight. ,p. unless trump switches back to how he felt just four weeks ago. (which he is wont to do) But hopefully he will stick with this belief.
http://thinkprogress.org/climate/2014/07/10/3458798/ted-cruz-auction-off-public-lands/