Sharp Contrasts With Other Jan. 6 Inquiries Increase Pressure on Garland

In the last week, local prosecutors in Atlanta barreled ahead with their criminal investigation into the effort by former President Donald J. Trump and his allies to overturn the 2020 election results in Georgia, targeting fake electors, issuing a subpoena to a member of Congress and winning a court battle forcing Rudolph W. Giuliani to testify to a grand jury.

In Washington, the House select committee investigating the Jan. 6, 2021, Capitol attack unfurled its latest batch of damning disclosures about Mr. Trump at a prime-time hearing, and directly suggested that Mr. Trump needs to be prosecuted before he...