Republican presidential candidate Donald Trump speaks during a campaign stop at the Allen County War Memorial Coliseum, Sunday, May 1, 2016, in Fort Wayne, Ind. AP PHOTO
WASHINGTON鈥擠onald Trump hit out hard at Hillary Clinton and Ted Cruz Sunday, sounding unapologetic two days before a key primary in Indiana he says will decide the Republican presidential race.
A new poll ahead of the winner-take-all vote Tuesday put the Republican frontrunner far in front of Cruz, who is hoping the Midwestern state will act as a Trump firewall.
Speaking on 鈥淔ox 黑料社 Sunday,鈥� Trump concentrated on attacking Clinton, doubling down on his much-criticized statement that the likely Democratic nominee鈥檚 only appeal to voters is the 鈥渨oman鈥檚 card.鈥�
鈥淪he鈥檚 done a lousy job in so many ways and even women don鈥檛 like her,鈥� he said. 鈥淏ut it is the woman鈥檚 card and she plays it. And I will let you know in about six months whether or not she plays it well, but I don鈥檛 think she鈥檒l play it well.鈥�
鈥淚f she were not a woman, she wouldn鈥檛 even be in this race,鈥� he added.
READ: Trump鈥檚 mention of 鈥榳oman鈥檚 card鈥� draws backlash
Clinton dismissed his comments on CNN.
鈥淚 have a lot of experience dealing with men who sometimes get off the reservation in the way they behave and how they speak,鈥� she said, going on to criticize a talk Trump gave this week, billed as his first major foreign policy speech.
鈥淚 found it disturbing,鈥� she said.
With a path to the Democratic nomination for her rival Bernie Sanders virtually impossible, Clinton sounded confident looking ahead to November鈥檚 general election, saying she would work with him to shape her party鈥檚 platform.
The Vermont senator who calls himself a Democratic socialist wasn鈥檛 throwing in the towel, however.
At a news conference in Washington, Sanders appealed to hundreds of so-called superdelegates in a bid to snatch the nomination.
These number around 700 and, in contrast to 鈥減ledged鈥� delegates, can vote for any candidate at the party鈥檚 national convention in Philadelphia in July, which culminates the nomination process.
Either candidate needs 2,383 delegates in order to clinch the nomination. Currently, Clinton has 2,176, including 510 superdelegates, while Sanders has 1,400, including 41 superdelegates, according to a CNN tally.
Clinton 鈥渨ill need superdelegates to take her over the top at the convention in Philadelphia,鈥� Sanders told reporters.
鈥淚t is incumbent upon every superdelegate to take a hard and objective look at which candidate stands the better chance of defeating Donald Trump,鈥� he said.
鈥楢 real liar鈥�
Trump on Sunday also targeted Cruz, dismissing his closest Republican rival鈥檚 criticism of Trump鈥檚 endorsement by former boxing champion Mike Tyson, whom Cruz called a rapist.
鈥淣o big deal, I didn鈥檛 have a meeting or anything, I haven鈥檛 seen Mike in years,鈥� the real-estate billionaire said on Fox.
Asked whether a victory for Trump in Indiana on Tuesday would clinch the nomination for him, Trump said, 鈥淵es, it鈥檚 over,鈥� adding, 鈥淚 think it鈥檚 over now.鈥�
READ: Anti-Trump art blossoms in US
A Wall Street Journal/NBC 黑料社/Marist poll released on Sunday gave Trump a 15 point lead in Indiana.
The survey gave him 49 percent of likely Republican primary voters, followed by 34 percent for Cruz and 13 percent for the third-place candidate, Ohio Governor John Kasich.
Although Trump has beamed with confidence at his Indiana rallies, the GOP battle is going down to the wire.
The debate over Trump is focused on whether he can win a majority of the 2,472 delegates who choose the nominee at the Republican convention in July.
Should he reach the magic number of 1,237, the nomination is his because nearly all delegates are bound to vote for their candidate in the first round.
If Trump falls short before the convention, Cruz hopes to snatch the nomination on a second ballot when most delegates become free to vote for whomever they choose.
Trump currently has 1,002 delegates, compared to 572 for Cruz and 157 for Kasich, according to a CNN tally.
Speaking on ABC鈥檚 鈥淭his Week,鈥� Cruz dismissed the contention that with it being 鈥渕athematically impossible鈥� for him to clinch the nomination in the first ballot, winning on the second ballot would be seen as stealing the nomination.
鈥淣obody鈥檚 going to clinch it on the first ballot,鈥� the conservative US senator from Texas said. 鈥淚t鈥檚 why Donald Trump is so desperate to say the race is over now.鈥�
Cruz fired back at Trump, saying on CBS鈥檚 鈥淔ace the Nation鈥� that the tycoon 鈥渋s attempting to perpetuate one of the greatest frauds in the history of modern elections, which is he is trying to convince people that he鈥檚 some sort of outsider.鈥�
鈥淒onald and Hillary are really flip sides of the same coin,鈥� he added. 鈥淚f we end up in the general election having two candidates on the ballot who are both big government, rich New York liberals, we will have profoundly failed this country.鈥�
Cruz evaded questions about whether he would bow out of the Republican contest if he loses in Indiana.