At more than 2.4 million - roughly twice that of Brazil. Among the many measure were the shutting down of bars and the reduction of restaurants' customers capacity to 50 percent.
New York, once the nation's pandemic epicentre, is now "on the exact opposite end" governor Andrew Cuomo said.
On Sunday, Arizona also recorded a record daily increase of more than 3,800 cases.
During the state's peak pandemic in April, almost 800 people were dying every day.
And, additionally, much will depend on who the new cases are - if they are fit young people, then there will not be a similar rise in deaths.
Coronavirus cases around the world have now passed 10 million, Johns Hopkins reports.
The debate on the use of facemasks is particularly heated in southern and western states, which have seen a sharp rise in coronavirus cases.
"We need to understand that COVID-19 has taken a very swift and very risky turn in Texas over just the past few weeks", he said.
Pence urges people to wear masks as US cases surge
Birx thanked Abbott for closing bars in the state in his executive order Friday.
However, when Texas State Governor Greg Abbott talked of a "swift and very unsafe turn" in regards to the numbers of new coronavirus cases and that "over just the past few weeks, the daily number of cases have gone from an average of about 2,000, to more than 5,000 a day", more and more residents of Texas started to look to the White House for further guidance.
Pence noted two weeks ago something changed but said he believed it was not the reopening but the behavior of people not wearing masks or social distancing.
In contrast, NY and its neighbouring northeastern states, which were initially hit hardest, have reported a fall in cases and are pressing ahead with reopening plans.
US Vice President Mike Pence speaks all through a information meeting alongside Gov. Greg Abbott at the University of Texas Southwestern Health-related Centre West Campus on June 28 in Dallas, Texas. During a press conference with Governor Abbott, the Vice President encouraged Texans to wear face masks or face coverings to help slow the spread of COVID-19.
Meanwhile, U.S. President Donald Trump generally refused to wear a mask in public.
"It's a tribute to the people of this great state".
Despite the spike in cases, Governor DeSantis has not bowed to pressure to issue statewide mandates on wearing masks, opting to leave the decision to local areas.