Judge sends Edwards jury back to deliberations The rise and fall of John Edwards NEW: Judge Catherine Eagles urges the jurors to reconsider their positions The jurors say they have reached a verdict on only one charge Prosecutors say he violated campaign finance laws in the 2008 presidential campaign Edwards used contributions to conceal his mistress, prosecutors have said Greensboro, North Carolina (CNN) -- The judge sent the jury in the John Edwards federal corruption trial back into deliberations Thursday after jurors announced they had reached a verdict on only one of six counts against him. Lawyers for the former senator and two-time Democratic presidential hopeful had asked U.S. District Judge Catherine Eagles to declare a mistrial, while prosecutors said they want the jury to continue deliberations. Jurors said Thursday afternoon -- their ninth day of deliberations -- that they had reached a unanimous verdict on one of the illegal campaign contribution charges Edwards faces. They did not reveal the verdict. Eagles ordered the jury to keep trying to reach a verdict on the other charges, reading them a set of instructions urging them to reconsider their positions. The instructions, formally known as an Allen charge, direct jurors to consider the time and expense of mounting another trial and the prospects that another jury would be faced with making the same decision. Edwards is charged with four counts of accepting illegal campaign contributions, one count of falsifying documents and one of conspiring to receive and conceal the contributions. The charges carry a maximum sentence of 30 years in prison and a $1.5 million fine. More details about the charges Jurors last week asked to review all the exhibits, indicating they were in it for the long haul. Prosecutors said Edwards "knowingly and willingly" accepted almost $1 million from two wealthy donors to hide former mistress Rielle Hunter and her pregnancy, then concealed the donations by filing false and misleading campaign disclosure reports. Defense attorneys argued that Edwards was guilty of nothing but being a bad husband to his wife, Elizabeth, who died in 2010. Everything you need to know about John Edwards Prosecutors argued that Edwards knowingly violated campaign finance laws by accepting the large contributions from Rachel Mellon and Fred Baron that went to support Hunter. The money was used to pay for Hunter's living and medical expenses, travel and other costs to keep her out of sight while Edwards made his White House run, prosecutors say. Defense attorneys argued the donations cannot be considered campaign contributions. Prosecutors said Edwards manipulated Young and others to help keep his affair out of public view. Baron offered to help out, telling Young to write up Hunter's expenses so Baron could reimburse them, the aide testified. Defense lawyer Abbe Lowell urged jurors to focus on Young's role in the case, saying he was a biased and unreliable witness with a financial and legal interest in the outcome. CNN's Joe Johns and Adam Reiss contributed to this report.