washington/tampa fla. hillary clinton name u.s. senator tim kaine run mate friday opt experience govern partner help present democratic ticket steady alternative unpredictable campaign republican presidential rival donald trump selection kaine self-described bore virginian reputation low-key competence could appeal independents moderate quickly anger liberal group object advocacy asian free-trade pact spanish-speaking former virginia governor richmond mayor fit clinton long-stated criteria vice presidential choice capable reliable partner ready take presidency necessary clinton make announcement via twitter text message supporters first day two-day campaign swing florida call kaine tell 40 minutes announcement call president barack obama shortly kaine thrill tell first choose sen. tim kaine run mate welcome team say text message kaine 58 edge two finalists cory booker u.s. senator new jersey agriculture secretary tom vilsack accord democratic source familiar discussions clinton also bypass candidates would generate excitement among liberal hispanic activists include progressive favorite u.s. senator elizabeth warren two hispanic members obama cabinet julian castro thomas perez former secretary state formally nominate party presidential candidate nov. election next week democratic convention philadelphia lead trump many opinion poll clinton choice run mate could give campaign momentum head convention fight white house begin three-month push finish clinton 68 acknowledge interview early week even kaine admit bore say mind love tell charlie rise cbs news pbs never lose election world-class mayor governor senator one highly respect senators know campaign official say clinton impress kaine down-to-earth style campaign virginia last week afterwards kaine go back house washington d.c. 90-minute even meet two days late kaine wife anne join clinton new york lunch along clinton husband former president bill clinton daughter chelsea chelsea husband kaine vice presidential candidate private family lunch vet process official say clinton campaign chairman john podesta lead search offer advice need someone whenever walk room glad see want part conversation campaign official quote podesta tell kaine first appearance clinton saturday event miami campaign aide say get phone hillary honor run mate wait hit trail tomorrow miami kaine say twitter liberal group pressure clinton pick kaine support fast-track authority white house negotiate trans-pacific partnership dismay choice critics asia free-trade deal include trump clinton democratic primary rival bernie sanders say would unfair u.s. workers kill job clinton praise deal secretary state since distance republicans run hard democrats trade year unfortunately since tim kaine vote fast-track trans-pacific partnership republicans new open attack democrats economic populist issue say stephanie taylor co-founder progressive change campaign committee hispanic activists also may annoy pick kaine give latino candidates pass though latino advocacy group praise choice choose run mate track record advocate fight issue affect latino community nation immigration healthcare women right environment say ben monterroso executive director mi familia vota top republicans quick criticize clinton choice trump campaign call kaine ethically challenge insider call clinton kaine status quo ticket think crook hillary corrupt kaine go change anything washington opposite campaign aide jason miller say statement republican national committee chairman reince priebus condemn pick say clinton spend past week pander sanders grassroots democrats choose someone hold position spend entire primary try get leave of republican senator jeff flake arizona critical trump say twitter try count ways hat tim kaine draw blank congrats good man good friend flake say kaine could help clinton virginia heavily contest swing state choose kaine cost democrats seat senate republicans hold majority virginia democratic governor terry mcauliffe close clinton friend ally name replacement kaine clinton win white house democrats know kaine well dismiss fear lack toughness stand republican attack give deftly trump chew low-energy jeb bush little marco rubio republican primaries donald trump sledgehammer shrink violet say luke albee former chief staff democrat mark warner senior u.s. senator virginia albee watch kaine close years add mistake thoughtful genial disposition inability really forcefully articulate differences kaine good relations senators oppose party accord senior senate republican congressional aid one aide speculate kaine would effective reach congressional republicans become vice president role vice president joe biden play obama kaine member senate foreign relations arm service committees lead voice call formal authorization war islamic state militant group play important role secure congressional review 2015 international deal iran nuclear program although eventually back track-record back liberal cause end across-the-board automatic budget cut provide pathway citizenship millions undocumented immigrants kaine catholic become fluent spanish speaker serve missionary honduras express personal opposition abortion public record support abortion right democrat clinton pick kaine run mate bypass liberals