U.S. Sen. Ted Cruz on Monday will tour the southern border, where he will participate in the U.S. Border Patrol’s annual security initiative event.

The event will be held near Anzalduas Park at an area called “Rincon Village,” a popular area for undocumented migrant crossings. Also included at the event will be the chief patrol agent for the Rio Grande Valley sector, Rodolfo Karisch.

Cruz has long been a champion of the Border Patrol, participating in campaign events during his 2018 Senate re-election campaign alongside members of the Border Patrol’s labor union, called the National Border Patrol Council. Agents frequently take photographs with Cruz when he participates in events with them, and Cruz participated in an overnight patrol with agents in 2017.

The visit comes as the Border Patrol has come under criticism from government inspectors for bleak conditions in some agency facilities, such as the station in Clint, Texas. Cruz’s visit also comes amid large volumes of migrants crossing into South Texas, overwhelming Border Patrol facilities and resources.

Cruz visited the Rio Grande Valley last June during another moment of heightened immigration attention, when the Trump administration introduced a policy to separate migrant families at the southern border. Cruz and his Texas counterpart, Sen. John Cornyn, toured a youth migrant shelter in Brownsville before receiving a briefing form Border Patrol agents at the agency’s station in Weslaco.