Other 2020 presidential candidates also shared concerns about Mr. Biden's comments, which were made at a fundraiser in NY on Tuesday and have dogged the former vice president's campaign for several days.
"My hope is that in this campaign all of us can focus on what we are going to do to make sure that we make progress in this country because we are still not at the point where people are judged by the content of their character and not the color of their skin", he added.
A Democrat last won the state in a presidential election in 1976, and Republican President Donald Trump triumphed in SC in 2016 with 54.9% of the vote.
The plan is part of a more comprehensive "college for all" program that Sanders has already released in pieces and includes free tuition at all four-year public colleges and universities, as well as community colleges. He has shown particular strength in SC, where he has deep relationships from previous presidential runs, friendships with two of state's towering former senators and, perhaps most important in 2020, his eight years President Barack Obama's vice president.
Minnesota Sen. Amy Klobuchar is poking fun at President Donald Trump for all but sending the country "to war by tweet", while businessman Andrew Yang is promoting his plan for a universal, guaranteed, monthly income of $1,000.
New York Sen. Kirsten Gillibrand is asking South Carolina Democrats to "imagine a woman not just having a seat at the table, but having a seat at the head of the table". "He has to be clear on his policy agenda no matter what the other candidates say". SC will host the first primary in the South on February 29, 2020.
By the end of this weekend, Harris and Booker will have attended 31 and 27 events in the state respectively, according to a tally by the Post and Courier newspaper in Charleston, South Carolina.
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He was quickly consoled by the New Zealand fielders and was given a lengthy standing ovation by the packed crowd. Ross Taylor contributed 69 and bowling for West Indies Sheldon Cottrell took 4/56 and Brathwaite took 2/58.
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He has announced new sanctions beginning today and United States cyber forces reportedly struck Iranian military computer systems. His visit to Tehran comes after the U.S. accused Iran of attacking oil tankers earlier this month, which Iran denies.
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More than $645,000 in donations to Israel Folau's online fundraising page has already been donated by 8550 people as of Sunday afternoon.
Former Vice President Joe Biden is reminding SC voters of his long ties to the state that holds the South's first presidential primary.
SC holds the fourth nominating contest early next year, the first in which a significant proportion of the Democratic electorate - about 60 percent - is black. Biden has refused to apologise, pointing out that he opposed segregationists. Several other leading 2020 Democrats have embraced versions of Medicare for All.
At Clyburn's invitation, 21 Democrats seeking their party's presidential nomination will address a crowd in downtown Columbia on Friday night.
"This is about him evoking a bad power dynamic that he showed a lack of understanding or insensitivity to by invoking this idea that he was called son by white segregationists who, yes, they see in him their son", Booker, a 2020 democratic presidential candidate, said during an interview on ABC's "This Week".
The emotional moment at the Planned Parenthood candidates forum in SC on Saturday came just after Biden was asked to defend his "mixed record" on abortion. The gathering marks the first time so many hopefuls from the sprawling field will appear at the same event and comes just days before the first primary debates.
"We've been on defense for 47 years and it's not working", Massachusetts Sen.
That drew Booker's ire, and the senator from New Jersey called on Biden to apologize for showing insensitivity to African-Americans.