Here are the latest race ratings changes from your NBC Political Unit. These will be our last changes before Election Day.

HOUSE RATINGS CHANGES
TX-17 TOSS UP TO LEAN R
TN-8 TOSS UP TO LEAN R
NV-3 TOSS UP TO LEAN R
WI-8 TOSS UP TO LEAN R
NJ-3 LEAN D TO TOSS UP
MO-4 LEAN D TO TOSS UP
IA-3 LEAN D TO TOSS UP
NM-1 LEAN D TO TOSS UP
TN-4 LEAN D TO TOSS UP
NY-20 LEAN D TO TOSS UP
MA-10 LEAN D TO TOSS UP
OH-6 LEAN D TO TOSS UP
AZ-7 LEAN D TO TOSS UP
MS-4 PROBABLE D TO TOSS UP
GA-12 PROBABLE D TO LEAN D
IA-1 PROBABLE D TO LEAN D
ME-1 PROBABLE D TO LEAN D
MI-15 PROBABLE D TO LEAN D
RI-1 PROBABLE D TO LEAN D
MA-4 PROBABLE D TO LEAN D

For complete House, Senate, and governors ratings, click for our full map here.

NBC POLITICAL UNIT GOVERNORS RACE RATINGS CHANGES
ME: TOSS UP to LEAN R
NH: TOSS UP to LEAN D
WI: TOSS UP to LEAN R
MI: LEAN R to PROBABLE R
IA: LEAN R to PROBABLE R
GA: TOSS UP to LEAN R
AL: LEAN R to PROBABLE R
CA: TOSS UP to LEAN D

For full NBC Governors, House, and Senate ratings map, click here.

From NBC's Chuck Todd, Mark Murray, and Domenico Montanaro
Your First Read team presents our first Senate ratings of the 2010 cycle:

THE TOSSUPS:
Pure Toss-up: Illinois, Ohio, Pennsylvania
Toss up/Finger-on-Scale D: Colorado, Nevada, Washington, Wisconsin
Toss up/Finger-on-Scale I: Florida

Lean D: California
Lean R: Indiana, Kentucky, Missouri, New Hampshire

Probable D: Connecticut, West Virginia
Probable R: Delaware, Arkansas, North Carolina, Louisiana, Iowa

Solid D: Hawaii, Maryland, New York (Schumer), New York (Gillibrand), Oregon, Vermont
Solid R: Alabama, Alaska, Arizona, Georgia, Idaho, Kansas, North Dakota, Oklahoma, South Carolina, South Dakota, Utah