Police across the country are cracking down on Occupy Wall Street protesters, saying public safety is at stake.
Tensions are already rising in Oakland, Calif., as police Monday step up patrols and warn protesters to move out.
"Oakland is not afraid. We're not afraid of our tents being taken away, of the movement being stymied," said Shon Kae, who is part of Occupy Oakland's media team.
City officials have warned Occupy Oakland protesters for the third time in three days that they do not have the right to camp in the plaza in front of City Hall and that they face immediate arrest for doing so.
The city has already witnessed violent confrontations and a deadly shooting.
"A lot of people felt like it was just time to go. A lot of people said, 'We will not leave, we'll stay here till the end," Minister Monique with Occupy Oakland said.
Protests in Oregon, Pennsylvania
On Sunday in Portland, Ore., police drove hundreds of demonstrators from their camps and arrested more than 50.
"This isn't a game," Portland Mayor Sam Adams said. "This is real life and people's lives and safety are at stake here on all sides."
Portland police in riot gear emptied the parks and faced off against angry demonstrators.
Marvin Olasky is editor in chief of World Magazine and has written about the Occupy Wall Street movement. Watch his comments below on how the protests are being embraced and whether they will truly make a difference.
In Philadelphia, Mayor Michael Nutter has called the situation intolerable after a woman was sexually assaulted.
"Occupy Philly has changed," the mayor said. "We're seeing serious health and safety issues playing out on almost a daily basis. The people of Occupy Philly have also changed. And their intentions have changed."
Frustration with the movement has even become a campaign trail topic.
During last week's GOP debate, former House Speaker Newt Gingrich challenged the media to challenge the protesters.
"I have yet to hear a single reporter ask a single Occupy Wall Street person a single rational question about the economy that would lead them to say, for example: 'Who's going to pay for the park you're occupying if there are no businesses making a profit?' Gingrich said.