ABOUT THAT E-MAIL CONTROVERSY: Bernie Sanders gave Hillary Clinton a boost on the e-mail issue during Tuesday night’s Democratic debate, though as The Post’s Katie Zezima reports, the controversy isn’t going away. “Let me say something that may not be great politics — but I think the secretary is right. That is, the American people are sick and tired of hearing about your damn e-mails,” Sanders said. “Me, too,” Clinton responded, and the two shook hands. “The breaks have recently been falling in Clinton’s favor over the issue,” Zezima writes. “House Majority Leader Kevin McCarthy credited the House Select Committee investigating the 2012 attacks on the U.S. outposts in Libya for bringing down Clinton’s poll numbers. ‘This committee is basically an arm of the Republican National Committee,’ Clinton said Tuesday night. ‘It is a partisan vehicle, as admitted by the House Republican majority leader.'”

TWITTER ANNOUNCES LAYOFFS: Twitter plans to lay off 8 percent of its workforce as a way to revive growth under chief executive Jack Dorsey. “The layoffs, primarily in the company’s engineering and product functions, come a week after Dorsey took over as permanent CEO,” Reuters reports. “‘We feel strongly that engineering will move much faster with a smaller and nimbler team, while remaining the biggest percentage of our workforce,’ Dorsey said in a letter to employees. ‘And the rest of the organization will be streamlined in parallel.’ FBN Securities analyst Shebly Seyrafi, however, said the company needed to focus also on ‘rationalizing sales’ along with engineering to achieve its margin targets.”

WATCHDOG FINDS IRS VULNERABLE: The IRS is relying on outdated operating systems, creating a risk of hacking, a watchdog found. “According to the report, the agency failed to upgrade all of its Windows workstations and servers by ‘end of life’ deadlines, when Microsoft stopped providing support for the operating system the agency was using,” The Hill reports. “’When an operating system reaches its end of life, companies such as Microsoft stop supporting the operating system, which leaves the systems vulnerable to attack,’ the Treasury Inspector General for Tax Administration (IG) said. ‘For the IRS, the use of outdated operating systems may expose taxpayer information to unauthorized disclosure, which can lead to identity theft.'”