But she says the research does show the need to study whether or not there are long-lasting effects of repeated exposure over several years.

VOA: special.2011.03.02

She says Washington is delivering on President Obama's promises by helping local communities develop long-lasting solutions and not by focusing on one-time projects.

VOA: standard.2009.11.03

"It will not be long lasting. For two,three months .

VOA: standard.2009.05.10

"It is a clear sign that the Tea Party movement has some lasting staying power, that is has an ability to galvanize disaffected voters, and not only did Rand Paul win in Kentucky, but a Tea Party candidate won in a House race in Louisville, defeating another establishment candidate."

VOA: standard.2010.05.19