The Brazilian President Dilma Rousseff has vowed to step up the fight against corruption following mass anti-government protests.<br /><br /> But she has suffered a further blow after prosecutors charged a leading member of her party.<br /><br /> Millions of people took to the streets on Sunday, also denouncing a sluggish economy, rising prices and high inflation.<br /><br /> The president responded after meeting her ministers, saying Brazil needed the right institutions and laws to tackle corruption.<br /><br /> “All of us here are in complete agreement with this demand by the people, and have a clear determination to take measures that intensify the fight against corruption,” Rousseff said.<br /><br /> The Treasurer of Rousseff’s ruling Workers’ Party Joao Vaccari is one of 27 people to be charged with corruption linked to the energy giant Petrobras.<br /><br /> He is accused of soliciting donations from former Petrobras <br />services chief Renato Duque and executives at engineering firms.<br /><br /> Prosecutor Deltan Dallagnol said the authorities had “a
