Administration officials on Sunday stressed that President Trump Donald John TrumpFederal prosecutor speaks out, says Barr 'has brought shame' on Justice Dept. Former Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick MORE is determined to win a trade war with China after the president made comments earlier at the Group of Seven summit that White House said were misinterpreted.

The development came on the same day that a Republican challenger announced that he will mount a primary campaign against Trump.

Read The Hill's complete coverage below.

Graham: America must 'accept the pain that comes in standing up to China' By ZACK BUDRYK Sen. Lindsay Graham (R-S.C.) said Sunday that the “pain that comes with standing up to China” is a necessary aspect of the ongoing trade war between Washington and Beijing. Read the full story here