This AFP file photo taken on July 14, 2016 shows US Democratic presidential candidate Hillary Clinton and US Senator Tim Kaine, Democrat of Virginia, waving during a campaign rally in Annandale, Virginia.
US presidential candidates Donald Trump and Hillary Clinton are engaged in a non-stop smear campaign, with each accusing the other of corruption and lying.
In a text message to supporters on Friday, Trump, the Republican nominee for president, depicted Clinton’s new vice presidential running mate as a continuation of the “rigged system.”
Trump cast US Senator Tim Kaine of Virginia as “Corrupt Tim” and attacked him for supporting President Barack Obama’s policies.
"Tim Kaine is Hillary's VP pick. The ultimate insiders - Obama, Hillary, and Kaine. Don't let Obama have a 3rd Term. Contribute,” Trump said in a tweet.
"It's only fitting that Hillary Clinton would select an ethically challenged insider like Tim Kaine who's personally benefited from the rigged system,” Trump spokesman Jason Miller said.
“While serving in government, Kaine has taken tens of thousands of dollars in freebies - more than $160,000 in fact - on free vacations, free clothes, and free tickets,” Miller continued.
Senate Majority Leader Mitch McConnell, a Republican from Kentucky, said in a statement that by picking Kaine, Clinton “plans to serve as a third term of the liberal Obama administration.”
"As one of President Obama's most loyal 'yes men' in the Senate, and a proud Clinton Democrat, Kaine fought to protect Obamacare despite higher premiums, massive regulations despite higher costs for consumers, and a foreign policy that even Jimmy Carter says is a failure,“ McConnell said.
On Thursday, Clinton senior adviser John Podesta said Trump "is temperamentally unfit and totally unqualified to be president of the United States."
A recent poll shows that demand for an alternative candidate to the two main presidential nominees has surged since the last presidential election in 2012, underscoring the unpopularity of Clinton and Trump.
According to a Gallup poll released earlier this month, Trump and Clinton are currently among the worst-rated presidential candidates of the last 70 years.