Obama also discussed claimed that Trump was a symptom of hatred, saying: "You happen to be coming of age during one of those moments".
The president was widely censured by officials from across the political spectrum, and later clarified that he condemned neo-Nazis and white supremacy.
"We got, if you remember, individual mandate wiped out, we wiped out individual mandate, the most unpopular part of Obamacare".
Mr Obama, reacting to the article, said "that's not how our democracy is supposed to work". "How hard can that be, to say that Nazis are bad?" These people aren't elected.
The U.S., Obama stressed, is experiencing "dangerous times", and the November midterms offer voters "the chance to restore some semblance of sanity to our politics".
"It shouldn't be Democratic or Republican to say that we don't threaten the freedom of the press because they say things or publish stories we don't like".
"We're supposed to stand up to discrimination", Obama said.
Obama also addressed Trump's tone-deaf comments a year ago, when the president claimed that there were "some very fine people on both sides" during the Unite the Right rally in Charlottesville, Virginia, that saw white supremacists squaring off against anti-racism protesters.
California Sends FCC-Defying Net Neutrality Law To Governor's Desk
On Wednesday, the State Assembly passed a bill-the first of its kind in the USA -that would require such companies to change that. Almost three dozen states have introduced bills to replace the defunct regulations, and three states have already approved them.
After his predecessor took the unusual step of criticizing him by name in a speech Friday, President Donald Trump shot back with childish attacks and blatant lies.
"By the time I left office, household income was near its all-time high, and the uninsured rate hit an all-time low, poverty rates were falling", Obama said. Republicans passed a tax bill that exploded the deficit by $1.5 trillion, Obama noted.
I would not be surprised if Obama - as long as he is in IL - does some campaigning with Democratic governor nominee J.B. Pritzker. "Doubling down on that strategy won't work in 2018 either", said Republican National Committee spokesman Michael Ahrens.
If Democrats won control of one or both chambers in Congress in November, they would be able not just to stymie Mr Trump's agenda but to launch investigations into the Trump administration. "The idea that, 'Well, you know, there's racism in America, so I'm not going to bother voting, ' makes no sense".
Trump has consistently used Obama as a foil on Twitter to energize his voters, while Democratic incumbent senators are struggling for reelection in states where Obama has never been particularly popular.
"If what you are doing requires no sacrifice at all, then you can do more", Obama told the crowd at a sweeping multi-million-dollar Beverly Hills home.
Next Thursday, Obama leads a rally in Cleveland for Ohio governor candidate Richard Cordray and other Ohio Democrats.