Colombia's three leading presidential candidates have concluded their campaigns with rallies ahead of the May 31 first-round election. Polls show a tight race among leftist, far-right, and right-wing contenders, with a significant portion of undecided voters.

<p> <img alt="The three main candidates: Paloma Valencia (Centro Democr&aacute;tico), Abelardo de la Espriella (Defensores de la Patria), and Iv&aacute;n Cepeda (Pacto Hist&oacute;rico) close campaigns in Colombia" height="80" src="https://en.mercopress.com/data/cache/noticias/110244/100x80/ca.jpg" style="float: left; margin: 0 12px 6px 0; border: 1px solid #333;" width="100" /> The three main contenders to succeed President Gustavo Petro on Sunday closed their campaigns wit...