BERLIN (AP) — Chancellor Angela Merkel argued Friday that she has secured enough progress on migration issues to end a dispute with a conservative ally that has shaken the German government. The country's most influential business organizations backed her stance, urging Germany's ruling coalition to halt the bickering that they said could hurt the country's economy. Merkel came away from a European Union summit with agreements for Greece and Spain to take back migrants previously registered in those countries who arrive at Germany's borders, as well as an overall agreement by the 28-bloc to help ease the pressure of migration into Europe.