U.S. Park Police say they are investigating "criminal activity" after anti-Israel agitators vandalized statues in Washington, D.C.’s Lafayette Square over the weekend. 

Thousands swarmed the area in front of the White House on Saturday to protest President Biden’s handling of the Israel-Hamas war, with many waving pro-Palestinian flags and chanting "Free Palestine" as they marched around the nation’s capital. 

The protest descended into chaos after some demonstrators turned their attention to the statues in Lafayette Square just outside the White House and vandalized them with spray paint and graffiti. 

Other demonstrators turned their attention to park rangers working the area, shouting "F--- you, fascist!" and "Piggy, piggy, oink, oink!" Water bottles were aggressively thrown at rangers. Another man wearing a Hamas headband held up a bloody face mask that depicted Biden and shouted, "Down, down occupation!" while another demonstrator lit an American flag on fire.

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"This investigation is ongoing and United States Park Police investigators are looking to identify anyone involved in criminal activity that occurred on Saturday," the public information office for the National Park Service (NPS) told Fox News Digital. 

"The safety of our employees and our visitors is our top priority. National Park Service (NPS) managers, in conjunction with local officials, engage in event planning to provide for public safety during permitted demonstrations," an NPS spokesperson said. 

"Unfortunately, Saturday’s permitted demonstration resulted in an assault of a park ranger, injuries to two U.S. Park Police officers, and significant damage to the park resources. NPS staff are currently undertaking extensive cleanup and repair efforts to address the damage," the spokesperson said. 

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"The NPS has long recognized freedom of speech, press, religion, and public assembly. National parks and other public lands are the embodiment of our democracy. First Amendment activities, such as demonstrations, are activities protected by the First Amendment of the U.S. Constitution," the spokeperson said, adding that it adheres to a provision in the U.S. code "that enables parks to accommodate First Amendment activity at designated spaces within the park, while also protecting park resources and values and minimizing the impact on park visitors and park operations."

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"NPS staff work every day across the country to protect and preserve park resources, educate visitors, and inspire stewardship of some of our nation’s most treasured places. Defacement or vandalism of natural or cultural resources in national parks is not allowed at any time," NPS said. 

The protesters argued that Israel has crossed a "red line" of "genocide" in Gaza. Meanwhile, Israel explained details of its weeks-long plans for Saturday's hostage rescue mission, which saved the lives of four Israeli citizens who were captured during Hamas' October 7 attack.

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"The intention is to draw a red line where Biden won’t draw one when it comes to Israel’s genocide in Gaza, and say we as the people are drawing the red line today to say enough is enough," Nas Issa, a protester from the Palestinian Youth Movement, told NBC News. "It’s time for an arms embargo, and it’s time to end this."

Another protester told the outlet that she regrets voting for Biden in 2020 and that she "will never vote for him again."

Fox News' Anders Hagstrom contributed to this report. 

Nevada Gov. Joe Lombardo argued that President Biden's "failure to rein in national inflation" could cost him the election as voters in his state find the current economy "unsustainable."

"Since Mr. Biden took office, prices have risen 19 percent, a major factor in real average weekly earnings dropping 4 percent. This type of economic turmoil is simply unsustainable for Nevada families," the Republican wrote in a New York Times guest essay.

"If recent polling on Democratic candidates in Nevada is any indication, and I think it is, Mr. Biden has a big problem to overcome, because after three and a half years, Nevadans are losing confidence in him to do something meaningful about inflation and housing and are left with the feeling that he just doesn’t get it," he added.

Biden trails former President Trump by five points in the swing state, a Fox News poll found this month. Biden won Nevada by less than three percentage points in the 2020 election.

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Nevadans have been paying an extra $1,199 per month to purchase the same goods and services as they did in January 2021 because of inflation, according to a U.S. Joint Economic Committee estimate that Lombardo cited.

The governor warned that Biden is losing support from reliable Democratic voting blocs — like voters under 30 and Hispanic voters — in his state due to the "punishingly high" inflation and inability to afford housing.

"Many Nevadans believe that the nation’s economy would be better served with new leadership. They include 69 percent of young voters and 70 percent of Hispanic voters, who say they trust Mr. Trump to do a better job with the economy than Mr. Biden, according to a New York Times/Siena poll concluded last month," he wrote.

"As Gen Z graduates enter the work force and look to purchase their first homes, it’s no surprise that they are concerned about today’s punishingly high inflation and mortgage rates and are seeking an alternative to the status quo. My friend Peter Guzman, who leads the Latin Chamber of Commerce in Nevada, attributes this shift among Hispanics to their 'choosing policies over personalities' in this fraught economic environment, and he’s right. Today’s pocketbook issues have transcended traditional voting blocs, allowing voters to evaluate how their vote impacts their wallet and vice versa," he added.

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Nevada voters prefer Trump to Biden on handling the economy and immigration, with the former president holding 16- and 22-point leads, respectively, according to the June Fox News poll.

A recent Bloomberg News/Morning Consult survey also found Trump leads Biden 48% to 44% across the seven key swing states in play — Arizona, Georgia, Michigan, Nevada, North Carolina, Pennsylvania and Wisconsin.

Fox News' Aubrie Spady and Andrew Murray contributed to this report.