US President Donald Trump speaks with reporters after signing a presidential memo on pollution control in vehicles at the Oval Office of the White House in Washington, DC, on June 29, 2026. (Photo by SAUL LOEB / AFP via Getty Images)

The Administrator of the US Environmental Protection Agency Lee Zeldin (R) looks on as US President Donald Trump speaks after signing a presidential memo on pollution control in vehicles at the Oval Office of the White House in Washington, DC, on June 29, 2026. (Photo by SAUL LOEB / AFP via Getty Images)

US President Donald Trump speaks after signing a presidential memo on pollution control in vehicles at the Oval Office of the White House in Washington, DC, on June 29, 2026. (Photo by SAUL LOEB / AFP via Getty Images)

US President Donald Trump speaks after signing a presidential memo on pollution control in vehicles at the Oval Office of the White House in Washington, DC, on June 29, 2026. (Photo by SAUL LOEB / AFP via Getty Images)

US President Donald Trump speaks after signing a presidential memo on pollution control in vehicles at the Oval Office of the White House in Washington, DC, on June 29, 2026. (Photo by SAUL LOEB / AFP via Getty Images)

US President Donald Trump speaks after signing a presidential memo on pollution control in vehicles at the Oval Office of the White House in Washington, DC, on June 29, 2026. (Photo by SAUL LOEB / AFP via Getty Images)

US President Donald Trump speaks after signing a presidential memo on pollution control in vehicles at the Oval Office of the White House in Washington, DC, on June 29, 2026. (Photo by SAUL LOEB / AFP via Getty Images)

US President Donald Trump speaks after signing a presidential memo on pollution control in vehicles at the Oval Office of the White House in Washington, DC, on June 29, 2026. (Photo by SAUL LOEB / AFP via Getty Images)