A flurry of swing-state polls released early Friday shows President Obama edging Mitt Romney in the three critical battleground states of Ohio, Florida and Virginia, while Romney leads the president in Colorado.

In Florida, a Reuters-Ipsos poll shows Obama taking 48 percent support to Romney's 46. Romney still leads in Florida, according to the RealClearPolitics average of polls, 49-48 percent, but his lead has been dwindling since he opened up a 3-point advantage in mid-October.

Romney does not have a realistic path to an Electoral College victory without Florida. Former President Bill ClintonBill ClintonOPINION | Gen. Hayden: How the Russians played the Trumps Starr tells Trump to 'cut it out' with the attacks on Sessions OPINION | Democrats: Time to wish Hillary Clinton good luck and goodbye MORE will be campaigning on behalf of Obama in the Sunshine State throughout the day on Friday.

In Virginia, the Reuters-Ipsos poll found Obama ahead 49-44 percent. The candidates are statistically tied in the state, according to the RCP average, but here again, Romney led in the majority of the polls released throughout October.

In Ohio, Reuters-Ipsos found Obama with a small lead, 47-45 percent, over Romney. That’s in line with the RCP average, where Obama is ahead 48.9 to 46.6 percent.

The Buckeye State is the linchpin for both campaigns as they plot their paths to 270 electoral votes. Without it, the road to the White House for both becomes far more difficult.

Obama and Romney both have campaign events planned in Ohio on Friday.

Colorado is perhaps the swing state that is most difficult to read, but according to Reuters-Ipsos, Romney is ahead 47 percent to 46. Obama has a slight 1-point lead in Colorado, according to the RCP average, but polling in the state has been all over the place.

Obama won Colorado in 2008, but it was only the second time since 1968 the state had gone for the Democratic presidential candidate. GOP vice presidential candidate Paul RyanPaul Ryan McCain's cancer — The congressional peace maker Koch network teaming up with Trump officials for tax-reform event Senate ObamaCare repeal bill falls in shocking vote MORE is the only candidate campaigning in Colorado on Friday.

The candidates and their surrogates have campaign events planned in all four states before Election Day.