PHILADELPHIA — Hillary Clinton’s campaign is pressuring TV stations across the country to stop airing an anti-Clinton political ad sponsored by the pro-Trump super-PAC Rebuilding America Now. The campaign claims the ad, titled “Outsourcing,” is “directly contracted by evidence in the public record.” The ad claims Clinton went to India and talked up outsourcing — and then received a donation from Indian politician Amar Singh of up to $5 million in 2008. The Clinton campaign contends that the donation was made in a different year.