Health care activists and tea partiers keep bumping into each other this week.

As the health care debate reaches the finish line, advocates on both sides are meeting with lawmakers and holding rallies to sway the vote.

While 40 members of the Pittsburgh Tea Party met with their delegate this week, proponents of the Democratic plan waited outside for him.

“I would be doing all of you a disservice if I decided before hearing your voice how I was going to vote,” Rep. Jason Altmire (D-Penn.) told the tea party group on Wednesday.

The conservative activists posted a video of their meeting on “Take the Town Halls to Washington,” a blog created by the Nationwide Tea Party Coalition   to document a month-long effort to sway undecided House Democrats against President Obama’s health plan.

Altmire is one of 50 targets   the tea partiers have identified. Health bill proponents are targeting most of the same lawmakers as the reconciliation vote approaches.

Democratic leaders sent their final bill to the Congressional Budget Office this week and may have a House vote on it next week. But it’s unclear whether they have 216 votes to pass it.

That’s why the undecided lawmakers are getting so much attention from activist groups and even the President.

Among those pushing for the bill is an 11-year-old boy from Seattle. Marcelas Owens, whose uninsured mother died of pulmonary hypertension, joined members of Health Care for America Now   as they countered the tea partiers’ effort.

But the battle isn't just in Washington D.C.

Tea Party activists met in Raleigh, N.C., Thursday to urge Rep. Bob Etheridge (D-N.C) not to back the plan again. Etheridge voted for the House health care bill last year.

The News & Observer   reports on the competing chants heard outside the state capital after the Democratic Party quickly organized their own, larger rally to support Etheridge.

A similar encounter happened in St. Louis when President Obama spoke there on Wednesday. He visited Pennsylvania and Missouri this week to, like the advocates, bring moderate Democrats to his side.

“Sign-waving protesters from both sides of the heated health care debate lin[ed] the streets around him,” The Maneater , University of Missouri’s student newspaper, reported.

News sites and blogs also captured rallies in Colorado , Virginia , Arizona , and Georgia this week.

Ambreen Ali writes for Congress.org.

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