The former vice president announced the launch of Advancing American Freedom on Wednesday.
Immigrant rights groups said Harris's roles as vice president and in charge of diplomacy with Central American countries make her uniquely suited to advocate for immigrants.
The vice president said the White House would be "supportive" of the California governor.
"Jill and I were heartbroken to learn of the violent attack at a security checkpoint on the U.S. Capitol grounds," President Joe Biden said on Friday.
The former vice president has recently been the subject of speculation about his ambitions for the White House.
The vice president has been asked by President Joe Biden to oversee the diplomatic efforts to engage Mexico and Central American countries to address root causes of migration and oversee the flow and use of U.S. aid.
Some activists and Democrats have criticised Georgia Senate Bill 202 because they say it will suppress votes, including those of ethnic minorities.
Republicans chose Florida Governor Ron DeSantis and former Vice President Mike Pence as their top choices in a poll asking who they would vote for in the 2024 GOP presidential primaries if former President Donald Trump does not run.
The Republican Senate Minority Leader said the White House is "not interested in doing anything on a bipartisan basis."
"This is, however, not going to be solved overnight," the vice president said.
The president is facing growing backlash as the number of migrants attempting to reach the border has already hit a 20-year high, while the amount of unaccompanied children crossing over increased by 63 percent in February.
"If we really want something that is going to be lasting, we need to pass legislation," the vice president said.
Republicans say the Biden administration's border policies are encouraging a surge in new arrivals, particularly of unaccompanied minors.
President Joe Biden stumbled as he boarded Air Force One, in an echo of a similar incident experience by the former Vice President.
President Joe Biden is strongly rebuking the surge in racist attacks against Asian Americans that has been stoked by the coronavirus pandemic and highlighted after a gunman killed eight people in Georgia this week—six of them Asian women.
On Thursday, Biden said: "Now when President Harris and I took a virtual tour of a vaccination center, in Arizona..."
The president made the mistake during a press conference in which he described the coronavirus vaccine rollout.
Members of the Secret Service detained an armed suspect near the home of Vice President Kamala Harris on Wednesday.
"It speaks to a larger issue, which is the issue of violence in our country and what we must do to never tolerate it and to always speak out against it," Harris said.
A majority (64 percent) of women polled by Gender on the Ballot expressed excitement over having a woman vice president for the first time in history.
A majority of Republican voters said they'd "definitely" vote for Trump in 2024.
"Some supporter of women, huh? A woman paraded around as a champion of women, quick to believe all women unless it doesn't work to her political advantage," the Fox News host said in comments about the vice president.
Critics of the Texas senator took the opportunity to express satisfaction with having less chaos in the White House.
Passengers on the Grand Princess suffered an outbreak of the disease and left the ship a year ago this week.
A new poll of Republican voters shows that Florida Governor Ron DeSantis and former Vice President Mike Pence are tied for second place in a hypothetical 2024 presidential race behind Trump. Texas Senator Ted Cruz came in third.
The Michigan Republican congressman told Fox Business that COVID relief should help individuals more than states.
The U.S. Senate voted 51-50 on Thursday to advance President Joe Biden's coronavirus relief bill, bringing the sprawling $1.9 trillion package one step closer to being passed.