I reported yesterday in this myDD diary that national polling demonstrates a markedly downward trend for Barack Obama on several levels.  I also provided a Survey USA report card of pollsters in this election year.

Gallup and Rasmussen tracking polls both report today that the downward trend for Obama continues.

In Gallup, Obama drops another point.

Link here.

Given that this is a tracking poll that rolls nightly results into a 3-day average, a 1-point change has significance.  Gallup reports that "Clinton had a significant lead in Monday night interviewing."

Gallup's results shows a net 9-point drop for Obama in the past 5 days.

Rasmussen's 7-day tracking poll also shows a drop of another point for Obama (O45:C44).  This represents a 5-point drop in 4 days for Obama while Clinton has gained 2 points, resulting in a net 7-point decline for Obama in only four days.

Link here.

Rasmussen also reports that Obama's unfavorable rating is now 49%.  Rasmussen says:

The Illinois Senator is viewed favorably today by just 48% of voters nationwide (see recent daily results). The number with an unfavorable view of Obama has grown to 49%. Obama's overall favorable ratings peaked at 56% on February 21 and have declined modestly since that time. While Obama tries to move beyond discussions of race, he is viewed favorably by 83% of African-Americans and by 42% among White voters.

An interesting graph showing favorability trends of Clinton, Obama, and McCain for the past month was developed and presented by another myDD diarist yesterday.  That link is here.