Tim Scott, the GOP's lone African-American senator, says in the Capitol that Trump's comments on Judge Curiel are "racially toxic." — Manu Raju (@mkraju) June 6, 2016

Scott, who spoke with CNN reporter Manu Raju, is among several Republican leaders who have condemned Trump's statements about U.S. District Judge Gonzalo Curiel as "wrong," "offensive" and "inappropriate."

In an interview with CNN last week, Trump said Curiel is "Mexican" (he was actually born in Indiana) and biased against him because of Trump's plans to build a wall along the U.S.-Mexico border.

“He’s a Mexican,” Trump said of Curiel. “We’re building a wall between here and Mexico. The answer is, he is giving us very unfair rulings — rulings that people can’t even believe."

Tom Williams via Getty Images Sen. Tim Scott (R-S.C.) has criticized his party's presumptive presidential nominee before.

In February, Scott blasted Trump for failing to denounce the Ku Klux Klan after receiving an endorsement from former KKK grand wizard David Duke.

"Any candidate who cannot immediately condemn a hate group like the KKK does not represent the Republican Party, and will not unite it," the South Carolina senator said, as reported by The Washington Times. "If Donald Trump can’t take a stand against the KKK, we cannot trust him to stand up for America against Putin, Iran or ISIS."

Editor’s note: Donald Trump regularly incites political violence and is a serial liar,rampant xenophobe, racist, misogynist and birther who has repeatedly pledged to ban all Muslims — 1.6 billion members of an entire religion — from entering the U.S.