President Trump went on Twitter Sunday to blast Obamacare, days after the House passed a bill to overhaul health care.

He tweeted, "Republican Senators will not let the American people down! ObamaCare premiums and deductibles are way up – it was a lie and it is dead!"

Republican Senators will not let the American people down! ObamaCare premiums and deductibles are way up - it was a lie and it is dead! — Donald J. Trump (@realDonaldTrump) May 7, 2017

On Friday, he targeted the media, tweeting, "Wow, the Fake News media did everything in its power to make the Republican Healthcare victory look as bad as possible. Far better than Ocare!"

Check out photos from Trump's return to NYC

21 PHOTOS Donald Trump returns to New York See Gallery Donald Trump returns to New York A protester demonstrates near Trump Tower against U.S. President Donald Trump in the Manhattan borough of New York City, U.S. May 4, 2017. REUTERS/Mike Segar U.S. President Donald Trump (2nd R) and first lady Melania Trump (R) arrive with Australia's Prime Minister Malcolm Turnbull (L) and his wife Lucy Turnbull (C, back) at an event commemorating the 75th anniversary of the Battle of the Coral Sea, aboard the USS Intrepid Sea, Air and Space Museum in New York, U.S. May 4, 2017. REUTERS/Jonathan Ernst U.S. President Donald Trump lands via Marine One helicopter at the Wall Street landing zone in New York, U.S. May 4, 2017. REUTERS/Jonathan Ernst U.S. President Donald Trump arrives aboard Air Force One at JFK International Airport in New York, U.S. May 4, 2017. REUTERS/Jonathan Ernst An anti-Trump demonstrator (L) interacts with pro-Trump supporters near the Intrepid Sea, Air & Space Museum ahead of an expected visit by U.S. President Donald Trump in the Manhattan borough of New York City, U.S., May 4, 2017. REUTERS/Brendan McDermid A man with "No" written on his jacket stands in front of the Intrepid Sea, Air & Space Museum ahead of an expected visit by U.S. President Donald Trump in the Manhattan borough of New York City, U.S., May 4, 2017. REUTERS/Brendan McDermid U.S. President Donald Trump (L) and Australia's Prime Minister Malcolm Turnbull (R) deliver brief remarks to reporters as they meet ahead of an event commemorating the 75th anniversary of the Battle of the Coral Sea, aboard the USS Intrepid Sea, Air and Space Museum in New York, U.S. May 4, 2017. REUTERS/Jonathan Ernst Protesters hold signs near the Intrepid Sea, Air & Space Museum ahead of an expected visit by U.S. President Donald Trump in the Manhattan borough of New York City, U.S., May 4, 2017. REUTERS/Shannon Stapleton A pro-Trump supporter taunts anti-Trump protesters near the Intrepid Sea, Air & Space Museum ahead of an expected visit by U.S. President Donald Trump in the Manhattan borough of New York City, U.S., May 4, 2017. REUTERS/Brendan McDermid Protesters hold a ""Dump Trump" sign from a bridge to the Intrepid Sea, Air & Space Museum ahead of an expected visit by U.S. President Donald Trump in the Manhattan borough of New York City, U.S. May 4, 2017. REUTERS/Shannon Stapleton Protesters demonstrate near Trump Tower against U.S. President Donald Trump in the Manhattan borough of New York City, U.S. May 4, 2017. REUTERS/Mike Segar A protester holds effigies of chief strategist Steve Bannon (top) and U.S. President Donald Trump near the Intrepid Sea, Air & Space Museum ahead of an expected visit by the president in the Manhattan borough of New York City, U.S. May 4, 2017. REUTERS/Shannon Stapleton TPX IMAGES OF THE DAY Pro-Trump supporters walk near the Intrepid Sea, Air & Space Museum ahead of an expected visit by U.S. President Donald Trump in the Manhattan borough of New York City, U.S., May 4, 2017. REUTERS/Brendan McDermid New York City Sanitation trucks are pictured parked outside of Trump Tower in the Manhattan borough of New York City, U.S. May 4, 2017. REUTERS/Mike Segar Protesters hold signs near the Intrepid Sea, Air & Space Museum ahead of an expected visit by U.S. President Donald Trump in the Manhattan borough of New York City, U.S., May 4, 2017. REUTERS/Shannon Stapleton Protesters gather ahead of the anticipated arrival of U.S. President Donald Trump in the Manhattan borough of New York, U.S., May 4, 2017. REUTERS/Brendan McDermid Protesters demonstrate near Trump Tower against U.S. President Donald Trump in the Manhattan borough of New York City, U.S. May 4, 2017. REUTERS/Mike Segar Protesters, including a person impersonating U.S. President Donald Trump, gather ahead of the anticipated arrival of the president in the Manhattan borough of New York, U.S. May 4, 2017. REUTERS/Brendan McDermid A child holds a sign during a protest near Trump Tower against U.S. President Donald Trump in the Manhattan borough of New York City, U.S. May 4, 2017. REUTERS/Mike Segar Protesters demonstrate near Trump Tower against U.S. President Donald Trump in the Manhattan borough of New York City, U.S. May 4, 2017. REUTERS/Mike Segar Protesters demonstrate ahead of the anticipated arrival of U.S. President Donald Trump in the Manhattan borough of New York, U.S., May 4, 2017. REUTERS/Brendan McDermid Up Next See Gallery Discover More Like This HIDE CAPTION SHOW CAPTION of SEE ALL BACK TO SLIDE

Trump also wrote, "Why is it that the Fake News rarely reports Ocare is on its last legs and that insurance companies are fleeing for their lives? It's dead!"

On the other hand, Trump made some very positive remarks about his fellow Republicans the previous day, calling those who helped pass the legislation "a great group of people."

He added, "...they're not even doing it for the party, they're doing it for this country — because we suffered with Obamacare."

Commenting on the new bill, Trump said, "...as far as I'm concerned, your premiums, they're going to start to come down. We're going to get this passed through the Senate."

Despite Trump's optimistic remarks, a New York Times report says, "The House measure faces profound uncertainty in the Senate, where a handful of Republican senators immediately rejected it, signaling that they would start work on a new version of the bill virtually from scratch."