Obama Has Poll Leads in MO, CO and USA

At Daily Kos front pager brownsox notes, Obama is leading in swing states lost by both John Kerry and Al Gore:

NATIONAL
Quinnipiac. 7/8-13. MoE 2.4%.
Obama (D) 50 McCain (R) 41
NATIONAL
Rasmussen. 7/14. MoE 4.5%. (3-day average tracking numbers in parentheses)
Obama (D) 44 (44) McCain (R) 40 (42)
MISSOURI
Research 2000. MoE 3.5%.
Obama (D) 48 McCain (R) 43
COLORADO
Public Policy Polling. 7/9-10. MoE 3%.
Obama (D) 47 McCain (R) 43