Why I'm suspending the tracking poll for a while; the most ominous sign yet for POTUS

This thing is too volatile, and it's too far out from Election Day for daily tracking polls to to mean much. So after today, I'm going to stop running the Rasmussen tracking poll every day for a while. I'll post it occasionally, but it really doesn't say much this early- especially in an election that's going to be as close as this one looks like it's going to be, and with the leader and margin changing so often.

Anyway, today's tracking poll: Romney 48%, Obama 44%, somebody else four percent, undecided four percent.

Here's a figure from Rasmussen that may be the most ominous one for the President yet: in an election everybody agrees will turn on the voters' perception of who can do a better job of turning around the economy, Gov. Romney holds a 50%-42% lead over the President.

More bad news for the White House: another blue state in which Romney leads among likely voters. Wisconsin has the former Massachusetts governor with 47% to Mr. Obama's 44%, with five percent preferring another candidate and four percent undecided.

The Left took a major hit in Wisconsin recently when voters decisively rejected a recall effort against Republican Gov. Scott Walker inspired by disagreement with his efforts to eliminate union representation for state employees. How much the result was due to agreement with Walker, and how much to a conviction that the recall process was being abused by its use over a policy disagreement, remains unclear. But the Rasumussen result seems to imply that at the very least the episode is giving off pro-Romney ripples in a state in which by rights he shouldn't even be competitive.

ADDENDUM: Some more worrisome numbers for POTUS, this time from Gallup.