Trump blames 'ANTIFA and radical left' for violent George Floyd protests after Minnesota Gov. suggested white supremacists and cartels could be manipulating riots to destabilize nation as US descends into chaos

• Trump blamed antifa and radical leftists for violence in cities across the country on Friday
• Minnesota Governor Tim Walz earlier suggested that foreign and extremist influences are fueling chaos
• Walz hinted that white supremacists and drug cartels may be instigating the violence 
• Said that widespread arson and looting made a 'mockery' of Floyd's death and is an attack on civil society 
• Walz called for full mobilization of the state's National Guard for the first time in the state's history 
• Protests devolved into chaos in violence in at least 30 cities across the country on Friday night
• Federal protective officer in California and protester in Detroit were shot dead overnight
• White House was besieged by hundreds of demonstrators attempting to break through Secret Service lines

President Donald Trump has blamed antifa and the 'radical left' as protests over the death of George Floyd devolved into violence nationwide, after the governor of Minnesota suggested that foreign influences, white supremacists and drug cartels are the fueling chaos.

'It’s ANTIFA and the Radical Left. Don’t lay the blame on others!' Trump said in a tweet on Saturday. 

On Friday night, widespread looting and arson continued in Minneapolis and nearby St. Paul, in defiance of curfews there, and protests spilled into violence in 30 cities, as a federal agent in California and a protester in Detroit were shot dead. 

Earlier in the day, Minnesota Governor Tim Walz suggested domestic terrorists or foreign influences might be subverting peaceful protests and turning them to violence.

Los Angeles: A protester breaks a window of a business during a protest over the death of George Floyd Friday, May 29, 2020, in Los Angeles. Protests have been erupting all over the country after George Floyd died earlier this week in police custody in Minneapolis. (AP Photo/Ringo H.W. Chiu)

'Last night is a mockery of pretending that this is about George Floyd's death, or inequities, or historical traumas to our communities of color,' said Walz, a Democrat, at a press conference. 

'The situation in Minneapolis is no longer in any way about the murder of George Floyd, it is about attacking civil society, instilling fear, and disrupting our great cities,' Walz said.

'As you saw this expand across the United States, and you start to see whether it be domestic terrorism, whether it be ideological extremists to fan the group, or whether it be international destabilization of how our country works,' he continued.

On Friday night, Walz hinted that white supremacists and drug cartels may be fueling violence or taking advantage of the chaos in the rioting. 

Pressed by reporters on rumors that white supremacists were secretly infiltrating Black Lives Matter protests and instigating violence, Walz said: 'my suspicions and what I've seen on this, yes.'

'It gets worse than that,' Walz said. 'The cartels, who are wondering if there was a break in their drug transmissions, are trying to take advantage of the chaos. That's why this situation is on a federal level.

Walz said at his Saturday press conference that 'protection of citizens and property is our top priority, and maintaining and restoring civil order on the streets.'

'The tactics and approach that we have taken have evolved and need to evolve,' he said.

Floyd, 46, died on Monday in Minneapolis after bystander video captured a white police officer pressing a knee on the handcuffed black man's neck for at least seven minutes. 

The officer, Derek Chauvin, was fired from the force and has been charged with third-degree murder and manslaughter. 

In response to Friday's violence, Walz called for the full mobilization of the Minnesota National Guard for the first time in the state's history.

The Minnesota Army National Guard is composed of approximately 11,000 Guardsmen.

Around 500 National Guard soldiers have already been mobilized in and around Minneapolis, where an officer faces charges over Floyd's death. 

Fired police officer Derek Chauvin was arrested and charged on Friday with third-degree murder and manslaughter. 

Walz said that on Friday night, every resource in Minneapolis was deployed to respond to widespread looting, arson, vandalism and violence, and that the forces in the city would be expanded 'exponentially' by nightfall on Saturday.

The chaos in Minneapolis was mirrored in cities across the nation on Friday night, as National Guard units were called into Atlanta and put on standby in Washington DC, and two people were fatally shot in separate incidents in California and Detroit. 

In Oakland, California, two officers with the Federal Protective Service - a part of Homeland Security created to protect government facilities - were shot, one fatally, in confrontations with protesters. Police are investigating.

As some in the crowd at the White House grew more aggressive, police deployed pepper spray to keep them back and maintain a perimeter. 

Fellow demonstrators came to the aid of protesters who were sprayed, their eyes red and puffy, offering bottles of milk and water to splash on their faces.

By the end of the night, the protesters had stolen about 15 barricades and left police to form a line of officers holding riot shields to keep back the swelling crowd. 

At one point, the protesters were able to gain control of an officer´s shield and set it ablaze before trying to toss it back at the line of officers. Police used a smoke device to quickly stop them.

The protest went on for hours before police declared the gathering "unlawful" and ordered everyone to leave Lafayette Square, a seven-acre public park located directly north of the White House. 

Dozens of officers pushed forward with their shields and fired off streams of pepper spray at protesters.

Developing story, more to come.