May 13 (Reuters) - The following are the top stories in the Wall Street Journal. Reuters has not verified these stories and does not vouch for their accuracy.

- U.S. FDA Commissioner Marty Makary resigned, U.S. President Donald Trump said on Tuesday, after weeks of clashing with top White House and health advisers and drawing scrutiny for a series of controversial agency decisions, according to several people familiar with internal dynamics.

- Walmart WMT.O said it would cut or relocate about 1,000 corporate workers as it looks to combine more of its global-technology and product teams.

- Malaysian financier Low Taek Jho, widely known as Jho Low and now a fugitive, has sought a pardon from U.S. President Donald Trump.

- OpenAI Chief Executive Sam Altman offered a calm defense of his leadership of the ChatGPT maker in the third week of a blockbuster trial brought by Elon Musk that could shape the future of artificial intelligence.

- The Trump administration will designate David Venturella, a former private prison company executive and former career employee of the U.S. Immigration and Customs Enforcement, as its next acting director.