For months Obama has been saying, "I'm gonna do it, I'm really gonna do it---unless of course you give me what I want." He even told us the timing; it would be after the election.
In doing so, he will be keeping a promise to his radical base (Hispanic and otherwise), issuing a threat to the Republicans in Congress, and thumbing his nose at the American voters who expressed disapproval of him on November 4. You don't get a trifecta like that every day from a president.
I just wrote that what Obama is about to do constitutes a threat to Republicans in Congress. But actually, it's a threat to Congress itself. Democrats should be just as disturbed as Republicans by it, because it's not the ends that are as important here as the very dangerous means. But if you've listened to a great many Democrats talk about it, you'd think ends are all they care about---and you might just be correct for most of them.
Obama has the strong support of leading Democrats,
who seem only too happy to cede the power of Congress to the president to get something they think will benefit the Party. Of course, they don't state that it's a dangerous executive power overreach; they
say this is just like what other presidents have done when they used their executive discretion to tweak immigration laws. Surely they must be aware of
the differences. But being aware has nothing to do with it; ideologues of the left have no trouble telling themselves that 2 + 2 = 5, and that what Reagan and Bush did was just the same as what Obama is poised to do now, even though only political junkies have even heard of the former actions before because they were relatively non-controversial.
Frum summarizes the differences
here, and they are substantial: