On Monday, President Trump signed this Memorandum instituting an immediate hiring freeze on all executive branch employees to expire upon completion of a more long-term plan to reduce the size of the federal government's workforce. This presumably applies to U.S. Attorney Offices and federal law enforcement officers. While the Administrative Office also notified federal courts, their agencies, and Federal Defender Offices nationwide of the hiring freeze, I don't how Trump could impose a hiring freeze on judiciary branch employees. And no word how this advances his promise to increase jobs.
P.S. You may want to skip the Yosemite visit this summer.