Instagram announced Wednesday that it has amassed 700 million monthly active users (MAU) since launching in 2010, a more than 16% increase in just four months, and a 40% increase in one year.

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Data: Instagram; Chart: Andrew Witherspoon / Axios

Why it matters: Instagram announced the growth achievement the same day Twitter reported its Q1 earnings, where it touted a 2.8% quarterly increase in monthly active users to to 328 million — still less than half of the user base of Instagram, which is four years younger. Instagram rival Snapchat will also be taking note of these numbers, as its audience has dwindled since Instagram launched a copycat stories feature in August. Instagram's stories audience has increased so quickly that it surpassed Snapchat's total audience by nearly 40 million MAU a few weeks ago.

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Democrats demand Trump release his tax returns after NYT report

Compilation images of House Nancy Pelosi and President Trump. Photo: Joshua Roberts/Getty Images/Chip Somodevilla/Getty Images

Democrats called on President Trump to disclose his tax returns following a New York Times report alleging he paid $750 in federal income taxes in 2016 and 2017 and nothing in 10 of the past 15 years.

Details: Trump said the report was "total fake news," that he's unable to release the returns as they're "under audit" by the IRS, "which does not treat me well." House Speaker Nancy Pelosi (D-Calif.) said in a statement the report "provides further evidence of the clear need" for a House lawsuit to access the tax returns and "ensure the presidential audit program is functioning effectively, without improper influence."

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Details: Fort Lauderdale Police Sgt. DeAnna Greenlaw told Axios officers responded to a report of "an armed male attempting suicide" just before 4 p.m. local time.

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California wine country wildfire prompts evacuations

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Firefighters in the western U.S. were facing "critical fire weather conditions," as a rapidly spreading new wildfire in Northern California prompted fresh evacuations Sunday.

Why it matters: Wildfires have burned a record 3.6 million acres in California this year, killing 26 people and razing over 7,600 structures, per Cal Fire. Utility provider Pacific Gas & Electric cut power to 11,000 customers early Sunday and planned outages for 54,000 others later in the day because of fire risks.

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