5-6 minute - Source: BBC
Rallies in Arizona, Colorado, Montana and Washington state took place on Sunday, following earlier protests in half a dozen states.
Agitation for easing restrictions has grown, despite the risk of a Covid-19 resurgence posed by reopening too soon.
US President Donald Trump has signalled support for the protests.
The US has become the
In Washington state, an early US virus hotspot, hundreds of people - many of them ignoring social distancing guidelines - gathered in the state capital to demand the governor relax rules restricting the economy.
Governors in several states have begun discussions to
California Governor Gavin Newsom was the first in the nation to issue a
New York Governor Andrew Cuomo announced this week that the state would extend its stay home measures until 15 May. Speaking at his daily virus briefing on Sunday, Mr Cuomo urged caution to residents, beset with "cabin fever" and desperate for their state to reopen.
"We still have to make sure we keep that beast under control," Mr Cuomo said. "As we all get very eager to get on with life and move on."
"This is only
Mr Trump, a Republican, appeared to endorse protests against strict lockdown measures, which are needed to curb the spread of the virus; he said on Friday that orders in place in Minnesota, Michigan and Virginia were "too tough".
Washington Governor Jay Inslee called the president's support of the protesters "dangerous", tantamount to encouraging "insubordination" to state laws.
"To have an American president to encourage people to violate the law, I can't remember any time in my time in America we have seen such a thing," he said on ABC news on Sunday.
Nancy Pelosi, the Democratic Speaker of the House, accused Mr Trump of endorsing the protests as a "distraction".
"The president's embrace of it as a distraction from the fact that he has not appropriately done testing, treatment, contact tracing and quarantine," she told ABC.
So-called "Operation Gridlock" protests backed by libertarian leaning groups also took place in state capitals in Denver, Colorado, and Phoenix, Arizona, on Sunday.
In Denver, protesters had descended upon the state capitol to demonstrate against the social distancing orders. Dozens of cars circled the capitol, local media report, while roughly 200 people assembled on the lawn, brandishing signs and flags.
On Saturday, protesters gridlocked the streets of Annapolis, Maryland, honking car horns in protest of lockdown measures. More than 200 people rallied outside the residence of the Indiana governor, while about 200 gathered in Austin, Texas.
Further protests are expected on Monday.